php recursive function return only false -

function recursivesearchkeybyval($array, $needle) {   //$k = false;   foreach($array $key => $val) {     if( is_array($val) ) {         $k = array_search($needle, $val);                     if( $k ) {                            #var_dump($k);   //<-- string(8) "12345678"      true             return $k;      //<-- bool(false)               false ?????????         } else {            recursivesearchkeybyval($val, $needle);         }     }   }   return false; }  $array = array( 'a'=>array(...), 'b'=>array( 'b1'=>array( '12345678'=>'abcdefgh' ), ...) ); var_dump( recursivesearchkeybyval($array, 'abcdefgh') ); 

i have recursive function , can't make return correct value... returns false.

heh, call function. when call function called again , again. when return value false, it's been deeper 1 execution.

you need that:

function recursivesearchkeybyval($array, $needle) {   $k = false;   foreach($array $key => $val) {     if( is_array($val) ) {         $k = array_search($needle, $val);                     if( $k ) {                            #var_dump($k);   //<-- string(8) "12345678"      true             return $k;      //<-- bool(false)               false ?????????         } else {            $k = recursivesearchkeybyval($val, $needle);         }     }   }   return $k; }