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https://github.com/sigmasternchen/php-doc-en
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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@78496 c90b9560-bf6c-de11-be94-00142212c4b1
92 lines
3.3 KiB
XML
92 lines
3.3 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.2 $ -->
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<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
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<refentry id="function.pg-connect">
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<refnamediv>
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<refname>pg_connect</refname>
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<refpurpose>Open a PostgreSQL connection</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>resource</type><methodname>pg_connect</methodname>
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<methodparam><type>string</type><parameter>connection_string</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>pg_connect</function> returns a connection resource
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that is needed by other PostgreSQL functions.
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</para>
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<para>
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<function>pg_connect</function> opens a connection to a
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PostgreSQL database specified by the
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<parameter>connection_string</parameter>. It returns a connection
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resource on success. It returns &false; if the connection could
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not be made. <parameter>connection_string</parameter> should be
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a quoted string.
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<example>
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<title>Using pg_connect</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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$dbconn = pg_connect ("dbname=mary");
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//connect to a database named "mary"
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$dbconn2 = pg_connect ("host=localhost port=5432 dbname=mary");
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// connect to a database named "mary" on "localhost" at port "5432"
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$dbconn3 = pg_connect ("host=sheep port=5432 dbname=mary user=lamb password=foo");
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//connect to a database named "mary" on the host "sheep" with a username and password
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$conn_string = "host=sheep port=5432 dbname=test user=lamb password=bar";
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$dbconn4 = pg_connect ($conn_string);
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//connect to a database named "test" on the host "sheep" with a username and password
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?>
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]]>
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</programlisting>
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</example>
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The arguments available for
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<parameter>connection_string</parameter> includes
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<parameter>host</parameter>, <parameter>port</parameter>,
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<parameter>tty</parameter>, <parameter>options</parameter>,
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<parameter>dbname</parameter>, <parameter>user</parameter>, and
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<parameter>password</parameter>.
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</para>
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<para>
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If a second call is made to <function>pg_connect</function> with
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the same <parameter>connection_string</parameter>, no
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new connection will be established, but instead, the connection
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resource of the already opened connection will be returned. You
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can have multiple connections to the same database if you use
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different connection string.
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</para>
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<para>
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The old syntax with multiple parameters
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<command>$conn = pg_connect ("host", "port", "options", "tty", "dbname")
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</command> has been deprecated.
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</para>
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<para>
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See also <function>pg_pconnect</function>,
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<function>pg_close</function>, <function>pg_host</function>,
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<function>pg_port</function>, <function>pg_tty</function>,
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<function>pg_options</function> and <function>pg_dbname</function>.
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</para>
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</refsect1>
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</refentry>
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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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