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<title>Returns the number of parameter for the given statement</title>
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<h1 class="refname">mysqli_stmt::$param_count</h1>
<h1 class="refname">mysqli_stmt_param_count</h1>
<p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">mysqli_stmt::$param_count</span> -- <span class="refname">mysqli_stmt_param_count</span> — <span class="dc-title">Returns the number of parameter for the given statement</span></p>
</div>
<div class="refsect1 description" id="refsect1-mysqli-stmt.param-count-description">
<h3 class="title">Description</h3>
<p class="para">Object oriented style</p>
<div class="fieldsynopsis"><span class="type">int</span> <var class="varname"><a href="mysqli-stmt.param-count.html">$mysqli_stmt->param_count</a></var>;</div>
<p class="para">Procedural style</p>
<div class="methodsynopsis dc-description">
<span class="type">int</span> <span class="methodname"><strong>mysqli_stmt_param_count</strong></span>
( <span class="methodparam"><span class="type"><a href="class.mysqli-stmt.html" class="type mysqli_stmt">mysqli_stmt</a></span> <code class="parameter">$stmt</code></span>
)</div>
<p class="para rdfs-comment">
Returns the number of parameter markers present in the prepared statement.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-mysqli-stmt.param-count-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">
stmt</code></em></span><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>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-mysqli-stmt.param-count-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns an integer representing the number of parameters.
</p>
</div>
<div class="refsect1 examples" id="refsect1-mysqli-stmt.param-count-examples">
<h3 class="title">Examples</h3>
<div class="example" id="example-1712">
<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 />$mysqli </span><span style="color: #007700">= new </span><span style="color: #0000BB">mysqli</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">, </span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">, </span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">mysqli_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">mysqli_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br />if (</span><span style="color: #0000BB">$stmt </span><span style="color: #007700">= </span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-></span><span style="color: #0000BB">prepare</span><span style="color: #007700">(</span><span style="color: #DD0000">"SELECT Name FROM Country WHERE Name=? OR Code=?"</span><span style="color: #007700">)) {<br /><br /> </span><span style="color: #0000BB">$marker </span><span style="color: #007700">= </span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">param_count</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Statement has %d markers.\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$marker</span><span style="color: #007700">);<br /><br /> </span><span style="color: #FF8000">/* close statement */<br /> </span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br />}<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
<div class="example" id="example-1713">
<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 />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">mysqli_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">, </span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">, </span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">mysqli_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">mysqli_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br />if (</span><span style="color: #0000BB">$stmt </span><span style="color: #007700">= </span><span style="color: #0000BB">mysqli_prepare</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #DD0000">"SELECT Name FROM Country WHERE Name=? OR Code=?"</span><span style="color: #007700">)) {<br /><br /> </span><span style="color: #0000BB">$marker </span><span style="color: #007700">= </span><span style="color: #0000BB">mysqli_stmt_param_count</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Statement has %d markers.\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$marker</span><span style="color: #007700">);<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>
Statement has 2 markers.
</pre></div>
</div>
</div>
</div>
<div class="refsect1 seealso" id="refsect1-mysqli-stmt.param-count-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<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>
</ul>
</p>
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