php - Automatically replace values -

i have functions return different predifined values:

    function a(){       $value = 'mercedes';       replacevalues($value);      }     function b(){      $value =  'audi';      replacevalues($value);     }     function c(){       $value = 'bmw';      replacevalues($value);     } 

is there function in php this:

function replacevalues($value){  switch($value){    case 'mercedes':     echo $value = 'topa'    break;    case 'audi':    echo 'topb'    break  //and on } } 

it nice if define array have iterate through (or php function exists)

$a = array('mercedes'=>'topa', 'audi' => 'topb'); 

so expand array or change corresponding replacements.

regards

the function looking is: array_search

$array = array(0 => 'azul', 1 => 'rojo', 2 => 'verde', 3 => 'rojo');  $key = array_search('verde', $array); // $key = 2; $key = array_search('rojo', $array);  // $key = 1;