Source of: /manual/fr/function.preg-last-error.php
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<div id="function.preg-last-error" class="refentry">
<div class="refnamediv">
<h1 class="refname">preg_last_error</h1>
<p class="verinfo">(PHP 5 >= 5.2.0)</p><p class="refpurpose"><span class="refname">preg_last_error</span> — <span class="dc-title">Retourne le code erreur de la dernière expression PCRE exécutée</span></p>
</div>
<a name="function.preg-last-error.description"></a><div class="refsect1 description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">int</span> <span class="methodname"><b>preg_last_error</b></span>
( <span class="methodparam">void</span>
)</div>
<p class="para rdfs-comment">
Retourne le code erreur de la dernière regex PCRE exécutée.
</p>
<p class="para">
</p><div class="example">
<p><b>Exemple #1 Exemple avec <b>preg_last_error()</b></b></p>
<div class="example-contents programlisting">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /><br />preg_match</span><span style="color: #007700">(</span><span style="color: #DD0000">'/(?:\D+|<\d+>)*[!?]/'</span><span style="color: #007700">, </span><span style="color: #DD0000">'foobar foobar foobar'</span><span style="color: #007700">);<br /><br />if (</span><span style="color: #0000BB">preg_last_error</span><span style="color: #007700">() == </span><span style="color: #0000BB">PREG_BACKTRACK_LIMIT_ERROR</span><span style="color: #007700">) {<br /> print </span><span style="color: #DD0000">'Backtrack limit was exhausted!'</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents para"><p>L'exemple ci-dessus va afficher :</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
Backtrack limit was exhausted!
</pre></div>
</div>
</div><p>
</p>
</div>
<a name="function.preg-last-error.returnvalues"></a><div class="refsect1 returnvalues">
<h3 class="title">Valeurs de retour</h3>
<p class="para">
Retourne une des constantes suivantes (<a href="pcre.constants.php" class="link">expliquées sur cette page</a>):
</p><ul class="simplelist">
<li class="member"><b><tt class="constant">PREG_NO_ERROR</tt></b></li>
<li class="member"><b><tt class="constant">PREG_INTERNAL_ERROR</tt></b></li>
<li class="member"><b><tt class="constant">PREG_BACKTRACK_LIMIT_ERROR</tt></b> (voir aussi <a href="pcre.configuration.php#ini.pcre.backtrack-limit" class="link">pcre.backtrack_limit</a>)</li>
<li class="member"><b><tt class="constant">PREG_RECURSION_LIMIT_ERROR</tt></b> (voir aussi <a href="pcre.configuration.php#ini.pcre.recursion-limit" class="link">pcre.recursion_limit</a>)</li>
<li class="member"><b><tt class="constant">PREG_BAD_UTF8_ERROR</tt></b></li>
<li class="member"><b><tt class="constant">PREG_BAD_UTF8_OFFSET_ERROR</tt></b> (depuis PHP 5.3.0)</li>
</ul><p>
</p>
</div>
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