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<h1 class="refname">pg_fetch_assoc</h1>
<p class="verinfo">(PHP 4 >= 4.3.0, PHP 5)</p><p class="refpurpose"><span class="refname">pg_fetch_assoc</span> — <span class="dc-title">Fetch a row as an associative array</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.pg-fetch-assoc-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">array</span> <span class="methodname"><strong>pg_fetch_assoc</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$result</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$row</code></span>
] )</div>
<p class="para rdfs-comment">
<span class="function"><strong>pg_fetch_assoc()</strong></span> returns an associative array that
corresponds to the fetched row (records).
</p>
<p class="para">
<span class="function"><strong>pg_fetch_assoc()</strong></span> is equivalent to calling
<span class="function"><a href="function.pg-fetch-array.html" class="function">pg_fetch_array()</a></span> with <strong><code>PGSQL_ASSOC</code></strong> as the
optional third parameter. It only returns an associative array.
If you need the numeric indices, use
<span class="function"><a href="function.pg-fetch-row.html" class="function">pg_fetch_row()</a></span>.
</p>
<blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">This function sets NULL fields to
the PHP <strong><code>NULL</code></strong> value.</span></p></blockquote>
<p class="para">
<span class="function"><strong>pg_fetch_assoc()</strong></span> is NOT significantly
slower than using <span class="function"><a href="function.pg-fetch-row.html" class="function">pg_fetch_row()</a></span>, and
is significantly easier to use.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.pg-fetch-assoc-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">result</code></em></span>
<dd>
<p class="para">
PostgreSQL query result resource, returned by <span class="function"><a href="function.pg-query.html" class="function">pg_query()</a></span>,
<span class="function"><a href="function.pg-query-params.html" class="function">pg_query_params()</a></span> or <span class="function"><a href="function.pg-execute.html" class="function">pg_execute()</a></span>
(among others).
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">row</code></em></span>
<dd>
<p class="para">
Row number in result to fetch. Rows are numbered from 0 upwards. If
omitted or <strong><code>NULL</code></strong>, the next row is fetched.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.pg-fetch-assoc-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
An <span class="type"><a href="language.types.array.html" class="type array">array</a></span> indexed associatively (by field name).
Each value in the <span class="type"><a href="language.types.array.html" class="type array">array</a></span> is represented as a
<span class="type"><a href="language.types.string.html" class="type string">string</a></span>. Database <em>NULL</em>
values are returned as <strong><code>NULL</code></strong>.
</p>
<p class="para">
<strong><code>FALSE</code></strong> is returned if <em><code class="parameter">row</code></em> exceeds the number
of rows in the set, there are no more rows, or on any other error.
</p>
</div>
<div class="refsect1 changelog" id="refsect1-function.pg-fetch-assoc-changelog">
<h3 class="title">Changelog</h3>
<p class="para">
<table class="doctable informaltable">
<thead>
<tr>
<th>Version</th>
<th>Description</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td>4.1.0</td>
<td>
The parameter <em><code class="parameter">row</code></em> became optional.
</td>
</tr>
</tbody>
</table>
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.pg-fetch-assoc-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-2067">
<p><strong>Example #1 <span class="function"><strong>pg_fetch_assoc()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php <br />$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"dbname=publisher"</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$conn</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"An error occurred.\n"</span><span style="color: #007700">;<br /> exit;<br />}<br /><br /></span><span style="color: #0000BB">$result </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"SELECT id, author, email FROM authors"</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$result</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"An error occurred.\n"</span><span style="color: #007700">;<br /> exit;<br />}<br /><br />while (</span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_fetch_assoc</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">'id'</span><span style="color: #007700">];<br /> echo </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">'author'</span><span style="color: #007700">];<br /> echo </span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #DD0000">'email'</span><span style="color: #007700">];<br />}<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.pg-fetch-assoc-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.pg-fetch-row.html" class="function" rel="rdfs-seeAlso">pg_fetch_row()</a> - Get a row as an enumerated array</span></li>
<li class="member"> <span class="function"><a href="function.pg-fetch-array.html" class="function" rel="rdfs-seeAlso">pg_fetch_array()</a> - Fetch a row as an array</span></li>
<li class="member"> <span class="function"><a href="function.pg-fetch-object.html" class="function" rel="rdfs-seeAlso">pg_fetch_object()</a> - Fetch a row as an object</span></li>
<li class="member"> <span class="function"><a href="function.pg-fetch-result.html" class="function" rel="rdfs-seeAlso">pg_fetch_result()</a> - Returns values from a result resource</span></li>
</ul>
</p>
</div>
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