PHP gets the specified number of columns in the two-dimensional array "with Array_column"

PHP5.3 more than Array_map use anonymous functions for processing

Code:

<?PHPfunctionArray_col ($arr=Array(),$idx= 0,$newidx= 0){    if(function_exists(' Array_column ') &&!Is_array($idx) &&Is_bool(Strpos($idx, ', ', 1))) {        returnArray_column ($arr,$idx,$newidx); } Else {        return Array_map(function($element) Use($idx,$newidx) {             $ret _arr=Array(); $tmp= !Is_array($idx) &&Is_int(Strpos($idx, ', ', 1)?Explode(‘,‘,$idx): 0; $ntmp= !Is_array($newidx) &&Is_int(Strpos($newidx, ', ', 1)?Explode(‘,‘,$newidx): 0; if(Empty($tmp)) {                return $ret _arr; }            $TMPC _idx=Count($tmp); $TMPC _newidx=Count($ntmp); if(Is_int($ntmp) ||Empty($ntmp)) {                 for($i= 0;$i<$TMPC _idx;$i++) {                     $ret _arr[]=$element[$tmp[$i]]; }            } Else {                if($TMPC _newidx>=$TMPC _idx) {                     for($i= 0;$i<$TMPC _newidx;$i++) {                         $ret _arr[$element[$ntmp[$i]]]=$element[$tmp[$i]]; }                }            }            return $ret _arr; },$arr); }}$a=Array(     Array(         ' id ' = 2135, ' first_name ' and ' John ', ' last_name ' and ' Doe ',     ),Array(         ' id ' = = 3245, ' first_name ' = ' Sally ', ' last_name ' and ' Smith ',     ) ); Var_export(Array_col ($a, ' Id,last_name ', ' first_name,first_name ')); ?>

Output

<? PHP Array (//Cover up   0 = =  array     (' John ' = ' Doe '  ),  1 =  Array  (    ' Sally ' = ' Smith ',  ),?>

PHP gets the specified number of columns in the two-dimensional array "with Array_column"