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<?php $text = '&lt;ul class=&quot;liste--non-ordonnee--gros--exergue&quot;&gt;'; preg_match('~(class=&quot;(?:[^&]*\s)?)--exergue~sU', $text, $match); var_dump($match);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
array(0) { }
preferences:
88.22 ms | 1231 KiB | 4 Q