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<title>Returns the number of result columns in a statement</title>
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<h1 class="refname">oci_num_fields</h1>
<p class="verinfo">(PHP 5, PHP 7, PECL OCI8 >= 1.1.0)</p><p class="refpurpose"><span class="refname">oci_num_fields</span> — <span class="dc-title">Returns the number of result columns in a statement</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.oci-num-fields-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">int</span> <span class="methodname"><strong>oci_num_fields</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$statement</code></span>
)</div>
<p class="para rdfs-comment">
Gets the number of columns in the given <code class="parameter">statement</code>.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.oci-num-fields-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">statement</code></dt>
<dd>
<p class="para">
A valid OCI statement identifier.
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.oci-num-fields-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns the number of columns as an integer, or <strong><code>FALSE</code></strong> on errors.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.oci-num-fields-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-2497">
<p><strong>Example #1 <span class="function"><strong>oci_num_fields()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br /></span><span style="color: #FF8000">// Create the table with:<br />// CREATE TABLE mytab (id NUMBER, quantity NUMBER);<br /><br /></span><span style="color: #0000BB">$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"hr"</span><span style="color: #007700">, </span><span style="color: #DD0000">"hrpwd"</span><span style="color: #007700">, </span><span style="color: #DD0000">"localhost/XE"</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$conn</span><span style="color: #007700">) {<br /> </span><span style="color: #0000BB">$m </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_error</span><span style="color: #007700">();<br /> </span><span style="color: #0000BB">trigger_error</span><span style="color: #007700">(</span><span style="color: #0000BB">htmlentities</span><span style="color: #007700">(</span><span style="color: #0000BB">$m</span><span style="color: #007700">[</span><span style="color: #DD0000">'message'</span><span style="color: #007700">]), </span><span style="color: #0000BB">E_USER_ERROR</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #0000BB">$stid </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_parse</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"SELECT * FROM mytab"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">oci_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$stid</span><span style="color: #007700">, </span><span style="color: #0000BB">OCI_DESCRIBE_ONLY</span><span style="color: #007700">); </span><span style="color: #FF8000">// Use OCI_DESCRIBE_ONLY if not fetching rows<br /><br /></span><span style="color: #0000BB">$ncols </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_num_fields</span><span style="color: #007700">(</span><span style="color: #0000BB">$stid</span><span style="color: #007700">);<br />for (</span><span style="color: #0000BB">$i </span><span style="color: #007700">= </span><span style="color: #0000BB">1</span><span style="color: #007700">; </span><span style="color: #0000BB">$i </span><span style="color: #007700"><= </span><span style="color: #0000BB">$ncols</span><span style="color: #007700">; </span><span style="color: #0000BB">$i</span><span style="color: #007700">++) {<br /> echo </span><span style="color: #0000BB">oci_field_name</span><span style="color: #007700">(</span><span style="color: #0000BB">$stid</span><span style="color: #007700">, </span><span style="color: #0000BB">$i</span><span style="color: #007700">) . </span><span style="color: #DD0000">" " </span><span style="color: #007700">. </span><span style="color: #0000BB">oci_field_type</span><span style="color: #007700">(</span><span style="color: #0000BB">$stid</span><span style="color: #007700">, </span><span style="color: #0000BB">$i</span><span style="color: #007700">) . </span><span style="color: #DD0000">"<br>\n"</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #FF8000">// Outputs:<br />// ID NUMBER<br />// QUANTITY NUMBER<br /><br /></span><span style="color: #0000BB">oci_free_statement</span><span style="color: #007700">(</span><span style="color: #0000BB">$stid</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">oci_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 notes" id="refsect1-function.oci-num-fields-notes">
<h3 class="title">Notes</h3>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
In PHP versions before 5.0.0 you must use <span class="function"><a href="function.ocinumcols.html" class="function">ocinumcols()</a></span> instead.
This name still can be used, it was left as alias of
<span class="function"><strong>oci_num_fields()</strong></span> for downwards compatability.
This, however, is deprecated and not recommended.
</p>
</p></blockquote>
</div>
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