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<?php $array = array( 'fruits' => [ 'apple' => 'value', 'orange' => 'value' ], 'vegetables' => [ 'onion' => 'value', 'carrot' => 'value' ]); $string = 'fruits[orange]'; $indexes = (preg_split( "/(\[|\])/", $string)); $first_index= $indexes[0]; $seconnd_index= $indexes[1]; if(isset($array[$first_index][$seconnd_index])) { echo "exist"; } else { echo "not exist"; }
Output for git.master, git.master_jit, rfc.property-hooks
exist

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