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<?php $obj = new \StdClass; $obj->textfield->id = 'text12'; $obj->textfield->text = 'herro'; $anotherObj = new \StdClass; $anotherObj->textfield->id = 'text1'; $anotherObj->textfield->text = 'moarrr text'; $yesAnother = new \StdClass; $yesAnother->textfield->id = 'text11'; $yesAnother->textfield->text = 'omggggg'; $array = array($obj, $anotherObj, $yesAnother); usort($array, function($a, $b) { preg_match_all('#\d+#', $a->textfield->id, $matchesA); preg_match_all('#\d+#', $b->textfield->id, $matchesB); $idNumA = (int)$matchesA[0][0]; $idNumB = (int)$matchesB[0][0]; return $idNumA > $idNumB; }); var_dump($array);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Attempt to assign property "id" on null in /in/l2lcf:4 Stack trace: #0 {main} thrown in /in/l2lcf on line 4
Process exited with code 255.

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