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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@297028 c90b9560-bf6c-de11-be94-00142212c4b1
113 lines
3.7 KiB
XML
113 lines
3.7 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.ibase-trans">
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<refnamediv>
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<refname>ibase_trans</refname>
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<refpurpose>Begin a transaction</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>resource</type><methodname>ibase_trans</methodname>
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<methodparam choice="opt"><type>int</type><parameter>trans_args</parameter></methodparam>
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<methodparam choice="opt"><type>resource</type><parameter>link_identifier</parameter></methodparam>
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</methodsynopsis>
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<methodsynopsis>
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<type>resource</type><methodname>ibase_trans</methodname>
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<methodparam choice="opt"><type>resource</type><parameter>link_identifier</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>trans_args</parameter></methodparam>
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</methodsynopsis>
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<para>
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Begins a transaction.
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</para>
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<note>
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<para>
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The behaviour of this function has been changed in PHP 5.0.0. The first call
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to <function>ibase_trans</function> will not return the default transaction
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of a connection. All transactions started by <function>ibase_trans</function>
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will be rolled back at the end of the script if they were not committed or
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rolled back by either <function>ibase_commit</function> or
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<function>ibase_rollback</function>.
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</para>
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</note>
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<note>
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<para>
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In PHP 5.0.0. and up, this function will accept multiple <parameter>trans_args</parameter>
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and <parameter>link_identifier</parameter> arguments. This allows transactions
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over multiple database connections, which are committed using a 2-phase commit
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algorithm. This means you can rely on the updates to either succeed in every
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database, or fail in every database. It does NOT mean you can use tables from
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different databases in the same query!
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</para>
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<para>
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If you use transactions over multiple databases, you will have to specify both
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the <parameter>link_id</parameter> and <parameter>transaction_id</parameter>
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in calls to <function>ibase_query</function> and <function>ibase_prepare</function>.
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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>trans_args</parameter></term>
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<listitem>
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<para>
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<parameter>trans_args</parameter> can be a combination of
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<constant>IBASE_READ</constant>,
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<constant>IBASE_WRITE</constant>,
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<constant>IBASE_COMMITTED</constant>,
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<constant>IBASE_CONSISTENCY</constant>,
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<constant>IBASE_CONCURRENCY</constant>,
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<constant>IBASE_REC_VERSION</constant>,
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<constant>IBASE_REC_NO_VERSION</constant>,
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<constant>IBASE_WAIT</constant> and
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<constant>IBASE_NOWAIT</constant>.
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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>link_identifier</parameter></term>
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<listitem>
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<para>
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An InterBase link identifier. If omitted, the last opened link is
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assumed.
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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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Returns a transaction handle, or &false; on error.
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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:"~/.phpdoc/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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