<!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>Fetches all rows in a particular result column as an array</title>
</head>
<body><div class="manualnavbar" style="text-align: center;">
<div class="prev" style="text-align: left; float: left;"><a href="function.pg-execute.html">pg_execute</a></div>
<div class="next" style="text-align: right; float: right;"><a href="function.pg-fetch-all.html">pg_fetch_all</a></div>
<div class="up"><a href="ref.pgsql.html">PostgreSQL Functions</a></div>
<div class="home"><a href="index.html">PHP Manual</a></div>
</div><hr /><div id="function.pg-fetch-all-columns" class="refentry">
<div class="refnamediv">
<h1 class="refname">pg_fetch_all_columns</h1>
<p class="verinfo">(PHP 5 >= 5.1.0)</p><p class="refpurpose"><span class="refname">pg_fetch_all_columns</span> — <span class="dc-title">Fetches all rows in a particular result column as an array</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.pg-fetch-all-columns-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">array</span> <span class="methodname"><strong>pg_fetch_all_columns</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$result</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$column</code><span class="initializer"> = 0</span></span>
] )</div>
<p class="para rdfs-comment">
<span class="function"><strong>pg_fetch_all_columns()</strong></span> returns an array that
contains all rows (records) in a particular column of the result resource.
</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>
</div>
<div class="refsect1 parameters" id="refsect1-function.pg-fetch-all-columns-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">column</code></em></span>
<dd>
<p class="para">
Column number, zero-based, to be retrieved from the result resource. Defaults
to the first column if not specified.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.pg-fetch-all-columns-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> with all values in the result column.
</p>
<p class="para">
<strong><code>FALSE</code></strong> is returned if <em><code class="parameter">column</code></em> is larger than the number
of columns in the result, or on any other error.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.pg-fetch-all-columns-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-2064">
<p><strong>Example #1 <span class="function"><strong>pg_fetch_all_columns()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php <br />$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_pconnect</span><span style="color: #007700">(</span><span style="color: #DD0000">"dbname=publisher"</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$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 title, name, address FROM authors"</span><span style="color: #007700">);<br />if (!</span><span style="color: #0000BB">$result</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"An error occurred.\n"</span><span style="color: #007700">;<br /> exit;<br />}<br /><br /></span><span style="color: #FF8000">// Get an array of all author names<br /></span><span style="color: #0000BB">$arr </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_fetch_all_columns</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">, </span><span style="color: #0000BB">1</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$arr</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-all-columns-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.pg-fetch-all.html" class="function" rel="rdfs-seeAlso">pg_fetch_all()</a> - Fetches all rows from a result as an array</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="function.pg-execute.html">pg_execute</a></div>
<div class="next" style="text-align: right; float: right;"><a href="function.pg-fetch-all.html">pg_fetch_all</a></div>
<div class="up"><a href="ref.pgsql.html">PostgreSQL Functions</a></div>
<div class="home"><a href="index.html">PHP Manual</a></div>
</div></body></html>
