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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 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
exist
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/vmNrQ on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/vmNrQ on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/vmNrQ on line 4
Process exited with code 255.
preferences:
98.79 ms | 409 KiB | 5 Q