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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@150059 c90b9560-bf6c-de11-be94-00142212c4b1
104 lines
3.7 KiB
XML
104 lines
3.7 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-prepare">
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<refnamediv>
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<refname>mysqli_prepare</refname>
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<refname>stmt->prepare</refname>
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<refpurpose>
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Prepare a SQL statement for execution
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</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<para>Procedure style:</para>
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<methodsynopsis>
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<type>mixed</type><methodname>mysqli_prepare</methodname>
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<methodparam><type>object</type><parameter>link</parameter></methodparam>
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<methodparam><type>string</type><parameter>query</parameter></methodparam>
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</methodsynopsis>
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<para>Object oriented style (method)</para>
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<classsynopsis>
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<ooclass><classname>stmt</classname></ooclass>
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<methodsynopsis>
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<type>mixed</type>
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<methodname>prepare</methodname>
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<methodparam><type>string</type><parameter>query</parameter></methodparam>
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</methodsynopsis>
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</classsynopsis>
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<para>
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<function>mysqli_prepare</function> prepares the SQL query pointed to by the
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null-terminated string query, and returns a statement handle to be used for
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further operations on the statement. The query must consist of a single SQL statement.
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</para>
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<note>
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<para>
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You should not add a terminating semicolon or <literal>\g</literal>
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to the statement.
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</para>
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</note>
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<para>
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The parameter <parameter>query</parameter> can include one or more parameter markers
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in the SQL statement by embedding question mark (<literal>?</literal>) characters
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at the appropriate positions.
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</para>
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<note>
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<para>
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The markers are legal only in certain places in SQL statements.
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For example, they are allowed in the VALUES() list of an INSERT statement
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(to specify column values for a row), or in a comparison with a column in
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a WHERE clause to specify a comparison value.
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</para>
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<para>
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However, they are not allowed for identifiers (such as table or column names),
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in the select list that names the columns to be returned by a SELECT statement),
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or to specify both operands of a binary operator such as the <literal>=</literal>
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equal sign. The latter restriction is necessary because it would be impossible
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to determine the parameter type. In general, parameters are legal only in Data
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Manipulation Languange (DML) statements, and not in Data Defination Language
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(DDL) statements.
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</para>
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</note>
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<para>
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The parameter markers must be bound to application variables using
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<function>mysqli_bind_param</function> and/or <function>mysqli_bind_result</function>
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before executing the statement or fetching rows.
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</para>
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</refsect1>
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<refsect1>
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&reftitle.returnvalues;
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<para>
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<function>mysqli_prepare</function> returns a statement object or &false; if an error occured.
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</para>
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</refsect1>
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<refsect1>
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&reftitle.seealso;
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<para>
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<function>mysqli_execute</function>
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<function>mysqli_fetch</function>
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<function>mysqli_bind_param</function>
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<function>mysqli_bind_result</function>
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<function>mysqli_stmt_close</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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