mirror of
https://github.com/sigmasternchen/php-doc-en
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2bc54384f0
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@205360 c90b9560-bf6c-de11-be94-00142212c4b1
313 lines
12 KiB
XML
313 lines
12 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.23 $ -->
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<!-- Purpose: database.vendors -->
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<!-- Membership: bundled -->
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<reference id="ref.sqlite">
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<title>SQLite Functions</title>
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<titleabbrev>SQLite</titleabbrev>
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<partintro>
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<section id="sqlite.intro">
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&reftitle.intro;
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<para>
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This is an extension for the SQLite Embeddable SQL Database Engine.
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SQLite is a C library that implements an embeddable SQL database engine.
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Programs that link with the SQLite library can have SQL database access
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without running a separate RDBMS process.
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</para>
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<para>
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SQLite is not a client library used to connect to a big database server.
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SQLite is the server. The SQLite library reads and writes directly to and from
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the database files on disk.
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</para>
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<note>
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<para>
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For further information see the SQLite Website
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(<ulink url="&url.sqlite;">&url.sqlite;</ulink>).
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</para>
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</note>
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</section>
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<section id="sqlite.install">
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<title>Installation</title>
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<para>
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Read the INSTALL file, which comes with the package. Or just use the PEAR
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installer with <command>pear install sqlite</command>.
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SQLite itself is already included, You do not need to install
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any additional software.
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</para>
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<para>
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Windows users may download the DLL version of the SQLite extension here:
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(<ulink url="&url.pecl.get.win;php_sqlite.dll">php_sqlite.dll</ulink>).
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</para>
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<para>
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In PHP 5, the SQLite extension and the engine itself are bundled and
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compiled by default. However, since PHP 5.1.0 you need to manually
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activate the extension in &php.ini; (because it is now bundled as
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shared). Moreover, since PHP 5.1.0 SQLite depends on <link
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linkend="ref.pdo">PDO</link> it must be enabled too, by adding the
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following lines to &php.ini; (in order):
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<informalexample>
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<programlisting role="ini">
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<![CDATA[
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extension=php_pdo.dll
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extension=php_sqlite.dll
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]]>
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</programlisting>
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</informalexample>
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On Linux or Unix operating systems, if you build PDO as a shared
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extension, you must build SQLite as a shared extension using the
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<command>--with-sqlite=shared</command> configure option.
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</para>
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<para>
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SQLite 3 is supported through <link
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linkend="ref.pdo-sqlite">PDO SQLite</link>.
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</para>
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<note>
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<title>Windows installation for unprivileged accounts</title>
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<para>
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On Windows operating systems, unprivileged accounts don't have the
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<varname>TMP</varname> environment variable set by default. This will
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make sqlite create temporary files in the windows directory, which is
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not desirable. So, you should set the <varname>TMP</varname> environment
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variable for the web server or the user account the web server is
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running under. If Apache is your web server, you can accomplish this via
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a <command>SetEnv</command> directive in your &httpd.conf; file. For
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example:
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<informalexample>
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<programlisting role="apache-conf">
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<![CDATA[
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SetEnv TMP c:/temp
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]]>
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</programlisting>
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</informalexample>
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If you are unable to establish this setting at the server
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level, you can implement the setting in your script:
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<informalexample>
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<programlisting role="php">
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<![CDATA[
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putenv('TMP=C:/temp');
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]]>
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</programlisting>
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</informalexample>
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The setting must refer to a directory that the web server
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has permission to create files in and subsequently write
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to and delete the files it created.
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Otherwise, you may receive the following error message:
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<computeroutput>
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malformed database schema -
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unable to open a temporary database file for storing temporary tables
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</computeroutput>
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</para>
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</note>
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</section>
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<section id="sqlite.requirements">
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&reftitle.required;
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<para>
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In order to have these functions available, you must compile PHP with
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SQLite support, or load the SQLite extension dynamically from your
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&php.ini;.
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</para>
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</section>
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<section id="sqlite.resources">
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&reftitle.resources;
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<para>
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There are two resources used in the SQLite Interface. The first one is the
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database connection, the second one the result set.
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</para>
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</section>
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&reference.sqlite.constants;
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<section id="sqlite.classes">
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&reftitle.classes;
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<section id="sqlite.class.sqlitedatabase">
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<title><classname>SQLiteDatabase</classname></title>
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<para>
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Represents an opened SQLite database.
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</para>
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<section id='sqlite.class.sqlitedatabase.constructor'>
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&reftitle.constructor;
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<itemizedlist>
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<listitem>
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<para><link linkend='function.sqlite-open'>__construct</link> - construct a new SQLiteDatabase object</para>
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</listitem>
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</itemizedlist>
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</section>
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<section id='sqlite.class.sqlitedatabase.methods'>
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&reftitle.methods;
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<itemizedlist>
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<listitem>
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<para><link linkend='function.sqlite-query'>query</link> - Execute a query</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-exec'>queryExec</link> - Execute a result-less query</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-array-query'>arrayQuery</link> - Execute a query and return the result as an array</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-single-query'>singleQuery</link> - Execute a query and return either an array for one single column or the value of the first row</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-unbuffered-query'>unbufferedQuery</link> - Execute an unbuffered query</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-last-insert-rowid'>lastInsertRowid</link> - Returns the rowid of the most recently inserted row</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-changes'>changes</link> - Returns the number of rows changed by the most recent statement</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-create-aggregate'>createAggregate</link> - Register an aggregating UDF for use in SQL statements</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-create-function'>createFunction</link> - Register a UDF for use in SQL statements</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-busy-timeout'>busyTimeout</link> - Sets or disables busy timeout duration</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-last-error'>lastError</link> - Returns the last error code of the most recently encountered error</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-fetch-column-types'>fetchColumnTypes</link> - Return an array of column types from a particular table</para>
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</listitem>
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</itemizedlist>
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</section>
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</section>
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<section id="sqlite.class.sqliteresult">
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<title><classname>SQLiteResult</classname></title>
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<para>
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Represents a buffered SQLite result set.
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</para>
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<section id='sqlite.class.sqliteresult.methods'>
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&reftitle.methods;
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<itemizedlist>
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<listitem>
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<para><link linkend='function.sqlite-fetch-array'>fetch</link> - Fetches the next row from the result set as an array</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-fetch-object'>fetchObject</link> - Fetches the next row from the result set as an object</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-fetch-single'>fetchSingle</link> - Fetches the first column from the result set as a string</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-fetch-all'>fetchAll</link> - Fetches all rows from the result set as an array of arrays</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-column'>column</link> - Fetches a column from the current row of the result set</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-num-fields'>numFields</link> - Returns the number of fields in the result set</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-field-name'>fieldName</link> - Returns the name of a particular field in the result set</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-current'>current</link> - Fetches the current row from the result set as an array</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-key'>key</link> - Return the current row index</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-next'>next</link> - Seek to the next row number</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-valid'>valid</link> - Returns whether more rows are available</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-rewind'>rewind</link> - Seek to the first row number of the result set</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-prev'>prev</link> - Seek to the previous row number of the result set</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-has-prev'>hasPrev</link> - Returns whether or not a previous row is available</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-num-rows'>numRows</link> - Returns the number of rows in the result set</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-seek'>seek</link> - Seek to a particular row number</para>
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</listitem>
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</itemizedlist>
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</section>
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</section>
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<section id="sqlite.class.sqliteunbuffered">
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<title><classname>SQLiteUnbuffered</classname></title>
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<para>
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Represents an unbuffered SQLite result set. Unbuffered results sets are sequential, forward-seeking only.
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</para>
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<section id='sqlite.class.sqliteunbuffered.methods'>
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&reftitle.methods;
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<itemizedlist>
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<listitem>
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<para><link linkend='function.sqlite-fetch-array'>fetch</link> - Fetches the next row from the result set as an array</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-fetch-object'>fetchObject</link> - Fetches the next row from the result set as an object</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-fetch-single'>fetchSingle</link> - Fetches the first column from the result set as a string</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-fetch-all'>fetchAll</link> - Fetches all rows from the result set as an array of arrays</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-column'>column</link> - Fetches a column from the current row of the result set</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-num-fields'>numFields</link> - Returns the number of fields in the result set</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-field-name'>fieldName</link> - Returns the name of a particular field in the result set</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-current'>current</link> - Fetches the current row from the result set as an array</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-next'>next</link> - Seek to the next row number</para>
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</listitem>
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<listitem>
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<para><link linkend='function.sqlite-valid'>valid</link> - Returns whether more rows are available</para>
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</listitem>
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</itemizedlist>
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</section>
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</section>
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</section>
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&reference.sqlite.ini;
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</partintro>
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&reference.sqlite.functions;
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</reference>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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