PHP Associative Array Duplicate Keys -

i have associative array, when add values using below function seems overwrite same keys. there way have multiple of same keys different values? or there form of array has same format?

i want have:

42=>56 42=>86 42=>97 51=>64 51=>52 etc etc 

code:

   function array_push_associative(&$arr) {        $args = func_get_args();        foreach ($args $arg) {            if (is_array($arg)) {                foreach ($arg $key => $value) {                    $arr[$key] = $value;                    $ret++;                }            }else{                $arr[$arg] = "";            }        }        return $ret;     } 

no, cannot have multiple of same key in associative array.

you could, however, have unique keys each of corresponding values arrays, , arrays have multiple elements each key.

so instead of this...

42=>56 42=>86 42=>97 51=>64 51=>52 

...you have this:

array (     42 => array ( 56, 86, 97 )     51 => array ( 64, 52 ) )