mysqli.prepare.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Prepare a SQL statement for execution</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="mysqli.ping.html">mysqli::ping</a></div> <div class="next" style="text-align: right; float: right;"><a href="mysqli.query.html">mysqli::query</a></div> <div class="up"><a href="class.mysqli.html">MySQLi</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="mysqli.prepare" class="refentry"> <div class="refnamediv"> <h1 class="refname">mysqli::prepare</h1> <h1 class="refname">mysqli_prepare</h1> <p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">mysqli::prepare</span> -- <span class="refname">mysqli_prepare</span> — <span class="dc-title">Prepare a SQL statement for execution</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <p class="para">Object oriented style (method)</p> <div class="methodsynopsis dc-description"> <span class="type"><span class="type mysqli_stmt">mysqli_stmt</span></span> <span class="methodname"><b><b>prepare</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$query</tt></span> )</div> <p class="para rdfs-comment">Procedure style:</p> <div class="methodsynopsis dc-description"> <span class="type"><span class="type mysqli_stmt">mysqli_stmt</span></span> <span class="methodname"><b><b>mysqli_prepare</b></b></span> ( <span class="methodparam"><span class="type"><a href="class.mysqli.html" class="type mysqli">mysqli</a></span> <tt class="parameter">$link</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$query</tt></span> )</div> <p class="para rdfs-comment"> Prepares the SQL query pointed to by the null-terminated string query, and returns a statement handle to be used for further operations on the statement. The query must consist of a single SQL statement. </p> <p class="para"> The parameter markers must be bound to application variables using <a href="mysqli-stmt.bind-param.html" class="function">mysqli_stmt_bind_param()</a> and/or <a href="mysqli-stmt.bind-result.html" class="function">mysqli_stmt_bind_result()</a> before executing the statement or fetching rows. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt><span class="term"><i><tt class="parameter">link</tt></i></span><dd><p class="para">Procedural style only: A link identifierreturned by <a href="mysqli.connect.html" class="function">mysqli_connect()</a> or <a href="mysqli.init.html" class="function">mysqli_init()</a></p></dd></dt> <dt> <span class="term"><i><tt class="parameter">query</tt></i></span> <dd> <p class="para"> The query, as a string. </p> <blockquote><p><b class="note">Note</b>: You should not add a terminating semicolon or <i>\g</i> to the statement. <br /> </p></blockquote> <p class="para"> This parameter can include one or more parameter markers in the SQL statement by embedding question mark (<i>?</i>) characters at the appropriate positions. </p> <blockquote><p><b class="note">Note</b>: The markers are legal only in certain places in SQL statements. For example, they are allowed in the <i>VALUES()</i>⌨️ 快捷键说明
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