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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@128539 c90b9560-bf6c-de11-be94-00142212c4b1
78 lines
3.5 KiB
XML
78 lines
3.5 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.3 $ -->
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<refentry id="function.mysqli-connect">
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<refnamediv>
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<refname>mysqli_connect</refname>
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<refpurpose>Open a new connection to the MySQL server</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>mysqli_connect</methodname>
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<methodparam choice='opt'><type>string</type><parameter>hostname</parameter></methodparam>
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<methodparam choice='opt'><type>string</type><parameter>username</parameter></methodparam>
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<methodparam choice='opt'><type>string</type><parameter>passwd</parameter></methodparam>
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<methodparam choice='opt'><type>string</type><parameter>dbname</parameter></methodparam>
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<methodparam choice='opt'><type>int</type><parameter>port</parameter></methodparam>
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<methodparam choice='opt'><type>string</type><parameter>socket</parameter></methodparam>
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</methodsynopsis>
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<para>
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The <function>mysqli_connect</function> function attempts to open a connection to the MySQL Server
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running on <parameter>host</parameter> which can be either a hostname or an IP address. Passing the
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&null; value or the string "localhost" to this parameter, the local host is assumed. When possible,
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pipes will be used instead of the TCP/IP protocol. If successful, the <function>mysqli_connect</function>
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will return a resource representing the connection to the database, or &false; on failure.
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</para>
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<para>
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The <parameter>username</parameter> and <parameter>password</parameter> parameters specify the
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username and password under which to connect to the MySQL server. If the password is not provided
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(the &null; value is passed), the MySQL server will attempt to authenticate the user against those
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user records which have no password only. This allows one username to be used with different
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permissions (depending on if a password as provided or not).
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</para>
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<para>
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The <parameter>dbname</parameter> parameter if provided will specify the default database to be
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used when performing queries.
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</para>
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<para>
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The <parameter>port</parameter> and <parameter>socket</parameter> parameters are used in
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conjunction with the <parameter>hostname</parameter> parameter to further control how to connect
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to the database server. The <parameter>port</parameter> parameter specifies the port number to
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attempt to connect to the MySQL server on, while the <parameter>socket</parameter> parameter
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specifies the socket or named pipe that should be used.
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</para>
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<note>
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<para>
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Specifying the <parameter>socket</parameter> parameter will not explicitly determine the type
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of connection to be used when connecting to the MySQL server. How the connection is made to the
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MySQL database is determined by the <parameter>host</parameter> parameter.
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</para>
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</note>
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<para>
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See also
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<function>mysqli_close</function> and
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<function>mysqli_real_connect</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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