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doc-fr/reference/pcre/functions/preg-last-error.xml
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2021-09-24 04:13:47 +01:00

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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
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<refentry xml:id="function.preg-last-error" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>preg_last_error</refname>
<refpurpose>Retourne le code erreur de la dernière expression PCRE exécutée</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>int</type><methodname>preg_last_error</methodname>
<void />
</methodsynopsis>
<para>
Retourne le code erreur de la dernière regex PCRE exécutée.
</para>
<para>
<example>
<title>Exemple avec <function>preg_last_error</function></title>
<programlisting role="php">
<![CDATA[
<?php
preg_match('/(?:\D+|<\d+>)*[!?]/', 'foobar foobar foobar');
if (preg_last_error() == PREG_BACKTRACK_LIMIT_ERROR) {
echo 'Backtrack limit was exhausted!';
}
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
Backtrack limit was exhausted!
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
&no.function.parameters;
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Retourne une des constantes suivantes (<link
linkend="pcre.constants">expliquées sur cette page</link>):
<simplelist>
<member><constant>PREG_NO_ERROR</constant></member>
<member><constant>PREG_INTERNAL_ERROR</constant></member>
<member><constant>PREG_BACKTRACK_LIMIT_ERROR</constant> (voir aussi <link
linkend="ini.pcre.backtrack-limit">pcre.backtrack_limit</link>)</member>
<member><constant>PREG_RECURSION_LIMIT_ERROR</constant> (voir aussi <link
linkend="ini.pcre.recursion-limit">pcre.recursion_limit</link>)</member>
<member><constant>PREG_BAD_UTF8_ERROR</constant></member>
<member><constant>PREG_BAD_UTF8_OFFSET_ERROR</constant></member>
<member><constant>PREG_JIT_STACKLIMIT_ERROR</constant></member>
</simplelist>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>preg_last_error_msg</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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