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<title>Get the last error message string of a connection</title>
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<h1 class="refname">pg_last_error</h1>
<p class="verinfo">(PHP 4 >= 4.2.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">pg_last_error</span> — <span class="dc-title">Get the last error message string of a connection</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.pg-last-error-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">string</span> <span class="methodname"><strong>pg_last_error</strong></span>
([ <span class="methodparam"><span class="type">resource</span> <code class="parameter">$connection</code></span>
] )</div>
<p class="para rdfs-comment">
<span class="function"><strong>pg_last_error()</strong></span> returns the last error message
for a given <code class="parameter">connection</code>.
</p>
<p class="para">
Error messages may be overwritten by internal PostgreSQL (libpq)
function calls. It may not return an appropriate error message if
multiple errors occur inside a PostgreSQL module function.
</p>
<p class="para">
Use <span class="function"><a href="function.pg-result-error.html" class="function">pg_result_error()</a></span>, <span class="function"><a href="function.pg-result-error-field.html" class="function">pg_result_error_field()</a></span>,
<span class="function"><a href="function.pg-result-status.html" class="function">pg_result_status()</a></span> and
<span class="function"><a href="function.pg-connection-status.html" class="function">pg_connection_status()</a></span> for better error handling.
</p>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
This function used to be called <span class="function"><strong>pg_errormessage()</strong></span>.
</p>
</p></blockquote>
</div>
<div class="refsect1 parameters" id="refsect1-function.pg-last-error-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">connection</code></dt>
<dd>
<p class="para">
PostgreSQL database connection resource. When
<code class="parameter">connection</code> is not present, the default connection
is used. The default connection is the last connection made by
<span class="function"><a href="function.pg-connect.html" class="function">pg_connect()</a></span> or <span class="function"><a href="function.pg-pconnect.html" class="function">pg_pconnect()</a></span>.
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.pg-last-error-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
A <span class="type"><a href="language.types.string.html" class="type string">string</a></span> containing the last error message on the
given <code class="parameter">connection</code>, or <strong><code>FALSE</code></strong> on error.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.pg-last-error-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-2564">
<p><strong>Example #1 <span class="function"><strong>pg_last_error()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /> $dbconn </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"dbname=publisher"</span><span style="color: #007700">) or die(</span><span style="color: #DD0000">"Could not connect"</span><span style="color: #007700">);<br /><br /> </span><span style="color: #FF8000">// Query that fails<br /> </span><span style="color: #0000BB">$res </span><span style="color: #007700">= </span><span style="color: #0000BB">pg_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$dbconn</span><span style="color: #007700">, </span><span style="color: #DD0000">"select * from doesnotexist"</span><span style="color: #007700">);<br /> <br /> echo </span><span style="color: #0000BB">pg_last_error</span><span style="color: #007700">(</span><span style="color: #0000BB">$dbconn</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.pg-last-error-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="function.pg-result-error.html" class="function" rel="rdfs-seeAlso">pg_result_error()</a> - Get error message associated with result</span></li>
<li class="member"><span class="function"><a href="function.pg-result-error-field.html" class="function" rel="rdfs-seeAlso">pg_result_error_field()</a> - Returns an individual field of an error report</span></li>
</ul>
</p>
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