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<?php $arr = array( 'arr1' => array( 'uids' => array('uid1','uid2','uid3','uid4'), 'dids' => array('did1','did2','did3','did4') ), 'arr2' => array( 'uids' => array('uid21','uid22','uid23','uid24'), 'dids' => array('did21','did22','did23','did24') ) ); $flatUids = array(); $flatDids = array(); $objTmp = (object) array('aFlat' => array()); array_walk_recursive($arr,function(&$v, $k, &$t){ if($k == 'uids') $t[] = $v; },$flatUids); var_dump($flatUids);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 18 array(0) { }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 Warning: {closure}(): Argument #3 ($t) must be passed by reference, value given in /in/Nq8lb on line 22 array(0) { }
Output for 5.3.0 - 5.3.2, 5.3.11 - 5.3.29, 5.4.1 - 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
array(0) { }
Output for 5.3.3 - 5.3.10, 5.4.0
Warning: Cannot use a scalar value as an array in /in/Nq8lb on line 20 Warning: Cannot use a scalar value as an array in /in/Nq8lb on line 20 Warning: Cannot use a scalar value as an array in /in/Nq8lb on line 20 array(0) { }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/Nq8lb on line 18
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 T_FUNCTION in /in/Nq8lb on line 18
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Nq8lb on line 18
Process exited with code 255.

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