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<h1 class="refname">pg_select</h1>
<p class="verinfo">(PHP 4 >= 4.3.0, PHP 5)</p><p class="refpurpose"><span class="refname">pg_select</span> — <span class="dc-title">
Select records
</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.pg-select-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <span class="methodname"><strong>pg_select</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$connection</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$table_name</code></span>
, <span class="methodparam"><span class="type">array</span> <code class="parameter">$assoc_array</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$options</code><span class="initializer"> = PGSQL_DML_EXEC</span></span>
] )</div>
<p class="para rdfs-comment">
<span class="function"><strong>pg_select()</strong></span> selects records specified by
<em>assoc_array</em> which has
<em>field=>value</em>. For a successful query, it returns an
array containing all records and fields that match the condition
specified by <em>assoc_array</em>.
</p>
<p class="para">If <em>options</em> is specified,
<span class="function"><a href="function.pg-convert.html" class="function">pg_convert()</a></span> is applied to
<em>assoc_array</em> with the specified flags.
</p>
<div class="warning"><strong class="warning">Warning</strong><p class="simpara">This function is
<em class="emphasis">EXPERIMENTAL</em>. The behaviour of this function, its name, and
surrounding documentation may change without notice in a future release of PHP.
This function should be used at your own risk.
</p></div>
</div>
<div class="refsect1 parameters" id="refsect1-function.pg-select-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">connection</code></em></span>
<dd>
<p class="para">
PostgreSQL database connection resource.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">table_name</code></em></span>
<dd>
<p class="para">
Name of the table from which to select rows.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">assoc_array</code></em></span>
<dd>
<p class="para">
An <span class="type"><a href="language.types.array.html" class="type array">array</a></span> whose keys are field names in the table <em><code class="parameter">table_name</code></em>,
and whose values are the conditions that a row must meet to be retrieved.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">options</code></em></span>
<dd>
<p class="para">
Any number of <strong><code>PGSQL_CONV_FORCE_NULL</code></strong>,
<strong><code>PGSQL_DML_NO_CONV</code></strong>,
<strong><code>PGSQL_DML_EXEC</code></strong>,
<strong><code>PGSQL_DML_ASYNC</code></strong> or
<strong><code>PGSQL_DML_STRING</code></strong> combined. If <strong><code>PGSQL_DML_STRING</code></strong> is part of the
<em><code class="parameter">options</code></em> then query string is returned.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.pg-select-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure. Returns <span class="type"><a href="language.types.string.html" class="type string">string</a></span> if <strong><code>PGSQL_DML_STRING</code></strong> is passed
via <em><code class="parameter">options</code></em>.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.pg-select-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-2116">
<p><strong>Example #1 <span class="function"><strong>pg_select()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php <br /> $db </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">'dbname=foo'</span><span style="color: #007700">);<br /> </span><span style="color: #FF8000">// This is safe, since $_POST is converted automatically<br /> </span><span style="color: #0000BB">$rec </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_select</span><span style="color: #007700">(</span><span style="color: #0000BB">$db</span><span style="color: #007700">, </span><span style="color: #DD0000">'post_log'</span><span style="color: #007700">, </span><span style="color: #0000BB">$_POST</span><span style="color: #007700">);<br /> if (</span><span style="color: #0000BB">$rec</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"Records selected\n"</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$rec</span><span style="color: #007700">);<br /> } else {<br /> echo </span><span style="color: #DD0000">"User must have sent wrong inputs\n"</span><span style="color: #007700">;<br /> }<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 changelog" id="refsect1-function.pg-select-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>5.5.3/5.4.19</td>
<td>Direct SQL injection to <em><code class="parameter">table_name</code></em> and Indirect SQL injection to identifiers are fixed.</td>
</tr>
</tbody>
</table>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.pg-select-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.pg-convert.html" class="function" rel="rdfs-seeAlso">pg_convert()</a> - Convert associative array values into suitable for SQL statement</span></li>
</ul>
</p>
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