<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Binds variables to a prepared statement for result storage</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="mysqli-stmt.bind-param.html">mysqli_stmt::bind_param</a></div> <div class="next" style="text-align: right; float: right;"><a href="mysqli-stmt.close.html">mysqli_stmt::close</a></div> <div class="up"><a href="class.mysqli-stmt.html">mysqli_stmt</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="mysqli-stmt.bind-result" class="refentry"> <div class="refnamediv"> <h1 class="refname">mysqli_stmt::bind_result</h1> <h1 class="refname">mysqli_stmt_bind_result</h1> <p class="verinfo">(PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">mysqli_stmt::bind_result</span> -- <span class="refname">mysqli_stmt_bind_result</span> — <span class="dc-title">Binds variables to a prepared statement for result storage</span></p> </div> <div class="refsect1 description" id="refsect1-mysqli-stmt.bind-result-description"> <h3 class="title">Description</h3> <p class="para">Object oriented style</p> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><strong>mysqli_stmt::bind_result</strong></span> ( <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter reference">&$var1</code></span> [, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter reference">&$...</code></span> ] )</div> <p class="para rdfs-comment">Procedural style</p> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><strong>mysqli_stmt_bind_result</strong></span> ( <span class="methodparam"><span class="type"><a href="class.mysqli-stmt.html" class="type mysqli_stmt">mysqli_stmt</a></span> <code class="parameter">$stmt</code></span> , <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter reference">&$var1</code></span> [, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter reference">&$...</code></span> ] )</div> <p class="para rdfs-comment"> Binds columns in the result set to variables. </p> <p class="para"> When <span class="function"><a href="mysqli-stmt.fetch.html" class="function">mysqli_stmt_fetch()</a></span> is called to fetch data, the MySQL client/server protocol places the data for the bound columns into the specified variables <code class="parameter">var1, ...</code>. </p> <blockquote class="note"><p><strong class="note">Note</strong>: <p class="para"> Note that all columns must be bound after <span class="function"><a href="mysqli-stmt.execute.html" class="function">mysqli_stmt_execute()</a></span> and prior to calling <span class="function"><a href="mysqli-stmt.fetch.html" class="function">mysqli_stmt_fetch()</a></span>. Depending on column types bound variables can silently change to the corresponding PHP type. </p> <p class="para"> A column can be bound or rebound at any time, even after a result set has been partially retrieved. The new binding takes effect the next time <span class="function"><a href="mysqli-stmt.fetch.html" class="function">mysqli_stmt_fetch()</a></span> is called. </p> </p></blockquote> </div> <div class="refsect1 parameters" id="refsect1-mysqli-stmt.bind-result-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <code class="parameter"> stmt</code></dt> <dd> <p class="para">Procedural style only: A statement identifier returned by <span class="function"><a href="mysqli.stmt-init.html" class="function">mysqli_stmt_init()</a></span>.</p></dd> <dt> <code class="parameter">var1</code></dt> <dd> <p class="para"> The variable to be bound. </p> </dd> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-mysqli-stmt.bind-result-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure. </p> </div> <div class="refsect1 examples" id="refsect1-mysqli-stmt.bind-result-examples"> <h3 class="title">Examples</h3> <div class="example" id="example-1910"> <p><strong>Example #1 Object oriented style</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$mysqli </span><span style="color: #007700">= new </span><span style="color: #0000BB">mysqli</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">, </span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">, </span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br />if (</span><span style="color: #0000BB">mysqli_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">mysqli_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #FF8000">/* prepare statement */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">$stmt </span><span style="color: #007700">= </span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-></span><span style="color: #0000BB">prepare</span><span style="color: #007700">(</span><span style="color: #DD0000">"SELECT Code, Name FROM Country ORDER BY Name LIMIT 5"</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br /> </span><span style="color: #FF8000">/* bind variables to prepared statement */<br /> </span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">bind_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$col1</span><span style="color: #007700">, </span><span style="color: #0000BB">$col2</span><span style="color: #007700">);<br /><br /> </span><span style="color: #FF8000">/* fetch values */<br /> </span><span style="color: #007700">while (</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">fetch</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$col1</span><span style="color: #007700">, </span><span style="color: #0000BB">$col2</span><span style="color: #007700">);<br /> }<br /><br /> </span><span style="color: #FF8000">/* close statement */<br /> </span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br />}<br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> <div class="example" id="example-1911"> <p><strong>Example #2 Procedural style</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">mysqli_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">, </span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">, </span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (!</span><span style="color: #0000BB">$link</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">mysqli_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #FF8000">/* prepare statement */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">$stmt </span><span style="color: #007700">= </span><span style="color: #0000BB">mysqli_prepare</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #DD0000">"SELECT Code, Name FROM Country ORDER BY Name LIMIT 5"</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">mysqli_stmt_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /><br /> </span><span style="color: #FF8000">/* bind variables to prepared statement */<br /> </span><span style="color: #0000BB">mysqli_stmt_bind_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">, </span><span style="color: #0000BB">$col1</span><span style="color: #007700">, </span><span style="color: #0000BB">$col2</span><span style="color: #007700">);<br /><br /> </span><span style="color: #FF8000">/* fetch values */<br /> </span><span style="color: #007700">while (</span><span style="color: #0000BB">mysqli_stmt_fetch</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">)) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$col1</span><span style="color: #007700">, </span><span style="color: #0000BB">$col2</span><span style="color: #007700">);<br /> }<br /><br /> </span><span style="color: #FF8000">/* close statement */<br /> </span><span style="color: #0000BB">mysqli_stmt_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">mysqli_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> <div class="example-contents"><p>The above examples will output:</p></div> <div class="example-contents screen"> <div class="cdata"><pre> AFG Afghanistan ALB Albania DZA Algeria ASM American Samoa AND Andorra </pre></div> </div> </div> </div> <div class="refsect1 seealso" id="refsect1-mysqli-stmt.bind-result-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><span class="function"><a href="mysqli-stmt.get-result.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_get_result()</a> - Gets a result set from a prepared statement</span></li> <li class="member"><span class="function"><a href="mysqli-stmt.bind-param.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_bind_param()</a> - Binds variables to a prepared statement as parameters</span></li> <li class="member"><span class="function"><a href="mysqli-stmt.execute.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_execute()</a> - Executes a prepared Query</span></li> <li class="member"><span class="function"><a href="mysqli-stmt.fetch.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_fetch()</a> - Fetch results from a prepared statement into the bound variables</span></li> <li class="member"><span class="function"><a href="mysqli.prepare.html" class="function" rel="rdfs-seeAlso">mysqli_prepare()</a> - Prepare an SQL statement for execution</span></li> <li class="member"><span class="function"><a href="mysqli-stmt.prepare.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_prepare()</a> - Prepare an SQL statement for execution</span></li> <li class="member"><span class="function"><a href="mysqli.stmt-init.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_init()</a> - Initializes a statement and returns an object for use with mysqli_stmt_prepare</span></li> <li class="member"><span class="function"><a href="mysqli-stmt.errno.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_errno()</a> - Returns the error code for the most recent statement call</span></li> <li class="member"><span class="function"><a href="mysqli-stmt.error.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_error()</a> - Returns a string description for last statement error</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="mysqli-stmt.bind-param.html">mysqli_stmt::bind_param</a></div> <div class="next" style="text-align: right; float: right;"><a href="mysqli-stmt.close.html">mysqli_stmt::close</a></div> <div class="up"><a href="class.mysqli-stmt.html">mysqli_stmt</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>