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https://github.com/sigmasternchen/php-doc-en
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- More work on pgsql docs overhaul. All the pg_lo_* functions are now done.
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@184314 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Christopher Kings-Lynne
parent
6926843be0
commit
4ee6ee268a
7 changed files with 443 additions and 39 deletions
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@ -1,5 +1,5 @@
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.5 $ -->
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<!-- $Revision: 1.6 $ -->
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<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
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<refentry id="function.pg-lo-open">
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<refnamediv>
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@ -16,12 +16,8 @@
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<methodparam><type>string</type><parameter>mode</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>pg_lo_open</function> opens a Large Object and
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returns large object resource. The resource encapsulates
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information about the connection.
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<parameter>oid</parameter> specifies a valid large object oid and
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<parameter>mode</parameter> can be either "r", "w", or "rw". It
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returns &false; if there is an error.
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<function>pg_lo_open</function> opens a large object in the database
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and returns large object resource so that it can be manipulated.
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</para>
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<warning>
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<para>
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@ -30,7 +26,7 @@
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</para>
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</warning>
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<para>
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To use the large object (lo) interface, it is necessary to
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To use the large object interface, it is necessary to
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enclose it within a transaction block.
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</para>
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<note>
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@ -39,7 +35,74 @@
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</para>
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</note>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>connection</parameter></term>
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<listitem>
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<para>
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PostgreSQL database connection resource. When
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<parameter>connection</parameter> is not present, the default connection
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is used. The default connection is the last connection made by
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<function>pg_connect</function> or <function>pg_pconnect</function>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>oid</parameter></term>
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<listitem>
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<para>
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The <varname>OID</varname> of the large object in the database.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>mode</parameter></term>
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<listitem>
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<para>
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Can be either "r" for read-only, "w" for write only or "rw" for read and
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write.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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A large object resource or &false; on error.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title><function>pg_lo_open</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$database = pg_connect("dbname=jacarta");
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pg_query($database, "begin");
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$oid = pg_lo_create($database);
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echo "$oid\n";
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$handle = pg_lo_open($database, $oid, "w");
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echo "$handle\n";
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pg_lo_write($handle, "large object data");
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pg_lo_close($handle);
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pg_query($database, "commit");
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?>
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]]>
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</programlisting>
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</example>
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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@ -1,5 +1,5 @@
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.5 $ -->
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<!-- $Revision: 1.6 $ -->
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<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
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<refentry id="function.pg-lo-read-all">
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<refnamediv>
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@ -19,11 +19,10 @@
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<function>pg_lo_read_all</function> reads a large object and passes
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it straight through to the browser after sending all pending
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headers. Mainly intended for sending binary data like images or
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sound. It returns number of bytes read. It returns &false;, if an
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error occurred.
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sound.
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</para>
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<para>
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To use the large object (lo) interface, it is necessary to
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To use the large object interface, it is necessary to
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enclose it within a transaction block.
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</para>
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<note>
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@ -33,6 +32,52 @@
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</note>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>large_object</parameter></term>
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<listitem>
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<para>
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PostgreSQL large object (LOB) resource, returned by <function>pg_lo_open</function>.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Number of bytes read or &false; on error.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title><function>pg_lo_read_all</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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header('Content-type: image/jpeg');
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$image_oid = 189762345;
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$database = pg_connect("dbname=jacarta");
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pg_query($database, "begin");
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$handle = pg_lo_open($database, $image_oid, "r");
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pg_lo_read_all($handle);
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pg_query($database, "commit");
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?>
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]]>
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</programlisting>
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</example>
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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@ -1,5 +1,5 @@
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.5 $ -->
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<!-- $Revision: 1.6 $ -->
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<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.74 -->
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<refentry id="function.pg-lo-read">
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<refnamediv>
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@ -16,14 +16,11 @@
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</methodsynopsis>
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<para>
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<function>pg_lo_read</function> reads at most
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<parameter>len</parameter> (defaults to 8192) bytes from a large object and
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returns it as a string. <parameter>large_object</parameter> specifies a
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valid large object resource and<parameter>len</parameter>
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specifies the maximum allowable size of the large object
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segment. It returns &false; if there is an error.
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<parameter>len</parameter> bytes from a large object and
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returns it as a <type>string</type>.
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</para>
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<para>
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To use the large object (lo) interface, it is necessary to
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To use the large object interface, it is necessary to
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enclose it within a transaction block.
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</para>
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<note>
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@ -33,6 +30,60 @@
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</note>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>large_object</parameter></term>
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<listitem>
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<para>
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PostgreSQL large object (LOB) resource, returned by <function>pg_lo_open</function>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>len</parameter></term>
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<listitem>
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<para>
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An optional maximum number of bytes to return. Defaults to 8192.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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A <type>string</type> containing <parameter>len</parameter> bytes from the
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large object, or &false; on error.
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title><function>pg_lo_read</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$doc_oid = 189762345;
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$database = pg_connect("dbname=jacarta");
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pg_query($database, "begin");
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$handle = pg_lo_open($database, $doc_oid, "r");
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$data = pg_lo_read($handle, 50000);
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pg_query($database, "commit");
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echo $data;
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?>
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]]>
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</programlisting>
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</example>
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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@ -1,11 +1,11 @@
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.5 $ -->
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<!-- $Revision: 1.6 $ -->
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<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
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<refentry id='function.pg-lo-seek'>
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<refnamediv>
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<refname>pg_lo_seek</refname>
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<refpurpose>
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Seeks position of large object
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Seeks position within a large object
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</refpurpose>
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</refnamediv>
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@ -18,12 +18,81 @@
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<methodparam choice="opt"><type>int</type><parameter>whence</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>pg_lo_seek</function> seeks position of large object
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resource. <parameter>whence</parameter> is <constant>PGSQL_SEEK_SET</constant>,
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<constant>PGSQL_SEEK_CUR</constant> or <constant>PGSQL_SEEK_END</constant>.
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<function>pg_lo_seek</function> seeks a position within a large object
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resource.
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</para>
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<para>
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To use the large object interface, it is necessary to
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enclose it within a transaction block.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>large_object</parameter></term>
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<listitem>
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<para>
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PostgreSQL large object (LOB) resource, returned by <function>pg_lo_open</function>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>offset</parameter></term>
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<listitem>
|
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<para>
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The number of bytes to seek.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>whence</parameter></term>
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<listitem>
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<para>
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One of the constants <constant>PGSQL_SEEK_SET</constant> (seek from object start),
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<constant>PGSQL_SEEK_CUR</constant> (seek from current position)
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or <constant>PGSQL_SEEK_END</constant> (seek from object end) .
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
|
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&reftitle.returnvalues;
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<para>
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&return.success;
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</para>
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</refsect1>
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<refsect1 role="examples">
|
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&reftitle.examples;
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<para>
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<example>
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<title><function>pg_lo_seek</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$doc_oid = 189762345;
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$database = pg_connect("dbname=jacarta");
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pg_query($database, "begin");
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$handle = pg_lo_open($database, $doc_oid, "r");
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// Skip first 10000 bytes
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pg_lo_seek($handle, 50000, PGSQL_SEEK_SET);
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// Read the next 50000 bytes
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$data = pg_lo_read($handle, 10000);
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pg_query($database, "commit");
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echo $data;
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?>
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]]>
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</programlisting>
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</example>
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</para>
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</refsect1>
|
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|
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<refsect1 role="seealso">
|
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&reftitle.seealso;
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<para>
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|
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@ -1,11 +1,11 @@
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.4 $ -->
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<!-- $Revision: 1.5 $ -->
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<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.74 -->
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<refentry id='function.pg-lo-tell'>
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<refnamediv>
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<refname>pg_lo_tell</refname>
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<refpurpose>
|
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Returns current position of large object
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Returns current seek position a of large object
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</refpurpose>
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</refnamediv>
|
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@ -16,11 +16,70 @@
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<methodparam><type>resource</type><parameter>large_object</parameter></methodparam>
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</methodsynopsis>
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<para>
|
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<function>pg_lo_tell</function> returns current position (offset
|
||||
from the beginning of large object).
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<function>pg_lo_tell</function> returns the current position (offset
|
||||
from the beginning) of a large object.
|
||||
</para>
|
||||
<para>
|
||||
To use the large object interface, it is necessary to
|
||||
enclose it within a transaction block.
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="parameters">
|
||||
&reftitle.parameters;
|
||||
<para>
|
||||
<variablelist>
|
||||
<varlistentry>
|
||||
<term><parameter>large_object</parameter></term>
|
||||
<listitem>
|
||||
<para>
|
||||
PostgreSQL large object (LOB) resource, returned by <function>pg_lo_open</function>.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</variablelist>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="returnvalues">
|
||||
&reftitle.returnvalues;
|
||||
<para>
|
||||
The current seek offset (in number of bytes) from the beginning of the large
|
||||
object. If there is an error, the return value is negative.
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<para>
|
||||
<example>
|
||||
<title><function>pg_lo_tell</function> example</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
$doc_oid = 189762345;
|
||||
$database = pg_connect("dbname=jacarta");
|
||||
pg_query($database, "begin");
|
||||
$handle = pg_lo_open($database, $doc_oid, "r");
|
||||
// Skip first 10000 bytes
|
||||
pg_lo_seek($handle, 50000, PGSQL_SEEK_SET);
|
||||
// See how far we've skipped
|
||||
$offset = pg_lo_tell($handle);
|
||||
echo "Seek position is: $offset";
|
||||
pg_query($database, "commit");
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
&example.outputs;
|
||||
<screen>
|
||||
<![CDATA[
|
||||
Seek position is: 50000
|
||||
]]>
|
||||
</screen>
|
||||
</example>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="seealso">
|
||||
&reftitle.seealso;
|
||||
<para>
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.5 $ -->
|
||||
<!-- $Revision: 1.6 $ -->
|
||||
<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
|
||||
<refentry id="function.pg-lo-unlink">
|
||||
<refnamediv>
|
||||
|
|
@ -19,16 +19,71 @@
|
|||
<parameter>oid</parameter>. &return.success;
|
||||
</para>
|
||||
<para>
|
||||
To use the large object (lo) interface, it is necessary to
|
||||
To use the large object interface, it is necessary to
|
||||
enclose it within a transaction block.
|
||||
</para>
|
||||
<note>
|
||||
<para>
|
||||
This function used to be called <literal>pg_lo_unlink()</literal>.
|
||||
This function used to be called <literal>pg_lounlink()</literal>.
|
||||
</para>
|
||||
</note>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="parameters">
|
||||
&reftitle.parameters;
|
||||
<para>
|
||||
<variablelist>
|
||||
<varlistentry>
|
||||
<term><parameter>connection</parameter></term>
|
||||
<listitem>
|
||||
<para>
|
||||
PostgreSQL database connection resource. When
|
||||
<parameter>connection</parameter> is not present, the default connection
|
||||
is used. The default connection is the last connection made by
|
||||
<function>pg_connect</function> or <function>pg_pconnect</function>.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term><parameter>oid</parameter></term>
|
||||
<listitem>
|
||||
<para>
|
||||
The <varname>OID</varname> of the large object in the database.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</variablelist>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="returnvalues">
|
||||
&reftitle.returnvalues;
|
||||
<para>
|
||||
&return.success;
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<para>
|
||||
<example>
|
||||
<title><function>pg_lo_unlink</function> example</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
// OID of the large object to delete
|
||||
$doc_oid = 189762345;
|
||||
$database = pg_connect("dbname=jacarta");
|
||||
pg_query($database, "begin");
|
||||
pg_lo_unlink($database, $doc_oid);
|
||||
pg_query($database, "commit");
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="seealso">
|
||||
&reftitle.seealso;
|
||||
<para>
|
||||
|
|
|
|||
|
|
@ -1,10 +1,10 @@
|
|||
<?xml version="1.0" encoding="iso-8859-1"?>
|
||||
<!-- $Revision: 1.6 $ -->
|
||||
<!-- $Revision: 1.7 $ -->
|
||||
<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
|
||||
<refentry id="function.pg-lo-write">
|
||||
<refnamediv>
|
||||
<refname>pg_lo_write</refname>
|
||||
<refpurpose>Write a large object</refpurpose>
|
||||
<refpurpose>Write to a large object</refpurpose>
|
||||
</refnamediv>
|
||||
|
||||
<refsect1 role="description">
|
||||
|
|
@ -16,14 +16,11 @@
|
|||
<methodparam choice="opt"><type>int</type><parameter>len</parameter></methodparam>
|
||||
</methodsynopsis>
|
||||
<para>
|
||||
<function>pg_lo_write</function> writes at most to a large object
|
||||
from a variable <parameter>data</parameter> and returns the number
|
||||
of bytes actually written, or &false; in the case of an error.
|
||||
<parameter>large_object</parameter> is a large object resource
|
||||
from <function>pg_lo_open</function>.
|
||||
<function>pg_lo_write</function> writes data into a large object
|
||||
at the current seek position.
|
||||
</para>
|
||||
<para>
|
||||
To use the large object (lo) interface, it is necessary to
|
||||
To use the large object interface, it is necessary to
|
||||
enclose it within a transaction block.
|
||||
</para>
|
||||
<note>
|
||||
|
|
@ -33,6 +30,71 @@
|
|||
</note>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="parameters">
|
||||
&reftitle.parameters;
|
||||
<para>
|
||||
<variablelist>
|
||||
<varlistentry>
|
||||
<term><parameter>large_object</parameter></term>
|
||||
<listitem>
|
||||
<para>
|
||||
PostgreSQL large object (LOB) resource, returned by <function>pg_lo_open</function>.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term><parameter>data</parameter></term>
|
||||
<listitem>
|
||||
<para>
|
||||
The data to be written to the large object. If <parameter>len</parameter> is
|
||||
specified and is less than the length of <parameter>data</parameter>, only
|
||||
<parameter>len</parameter> bytes will be written.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
<varlistentry>
|
||||
<term><parameter>len</parameter></term>
|
||||
<listitem>
|
||||
<para>
|
||||
An optional maximum number of bytes to write. Must be greater than zero
|
||||
and no greater than the length of <parameter>data</parameter>. Defaults to
|
||||
the length of <parameter>data</parameter>.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</variablelist>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="returnvalues">
|
||||
&reftitle.returnvalues;
|
||||
<para>
|
||||
The number of bytes written to the large object, or &false; on error.
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="examples">
|
||||
&reftitle.examples;
|
||||
<para>
|
||||
<example>
|
||||
<title><function>pg_lo_write</function> example</title>
|
||||
<programlisting role="php">
|
||||
<![CDATA[
|
||||
<?php
|
||||
$doc_oid = 189762345;
|
||||
$data = "This will overwrite the start of the large object.";
|
||||
$database = pg_connect("dbname=jacarta");
|
||||
pg_query($database, "begin");
|
||||
$handle = pg_lo_open($database, $doc_oid, "w");
|
||||
$data = pg_lo_write($handle, $data);
|
||||
pg_query($database, "commit");
|
||||
?>
|
||||
]]>
|
||||
</programlisting>
|
||||
</example>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1 role="seealso">
|
||||
&reftitle.seealso;
|
||||
<para>
|
||||
|
|
|
|||
Loading…
Reference in a new issue