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<title>Returns the number of columns in the query</title>
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<h1 class="refname">ifx_num_fields</h1>
<p class="verinfo">(PHP 4, PHP <=5.2.0)</p><p class="refpurpose"><span class="refname">ifx_num_fields</span> — <span class="dc-title">Returns the number of columns in the query</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.ifx-num-fields-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">int</span> <span class="methodname"><strong>ifx_num_fields</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$result_id</code></span>
)</div>
<p class="para rdfs-comment">
After preparing or executing a query, this call gives you the
number of columns in the query.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.ifx-num-fields-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">result_id</code></em></span>
<dd>
<p class="para">
<em><code class="parameter">result_id</code></em> is a valid resultid returned by
<span class="function"><a href="function.ifx-query.html" class="function">ifx_query()</a></span> or
<span class="function"><a href="function.ifx-prepare.html" class="function">ifx_prepare()</a></span> (select type queries only!).
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.ifx-num-fields-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns the number of columns in query for
<em><code class="parameter">result_id</code></em>, or <strong><code>FALSE</code></strong> on errors.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.ifx-num-fields-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-1202">
<p><strong>Example #1 <span class="function"><strong>ifx_num_fields()</strong></span> Example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$conn_id </span><span style="color: #007700">= </span><span style="color: #0000BB">ifx_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"db"</span><span style="color: #007700">, </span><span style="color: #DD0000">"user"</span><span style="color: #007700">, </span><span style="color: #DD0000">"password"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$res_id </span><span style="color: #007700">= </span><span style="color: #0000BB">ifx_query</span><span style="color: #007700">(</span><span style="color: #DD0000">"select * from systables"</span><span style="color: #007700">, </span><span style="color: #0000BB">$conn_id</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">ifx_num_fields</span><span style="color: #007700">(</span><span style="color: #0000BB">$res_id</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.ifx-num-fields-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.ifx-num-rows.html" class="function" rel="rdfs-seeAlso">ifx_num_rows()</a> - Count the rows already fetched from a query</span></li>
</ul>
</p>
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