在PHP中搜索并替换数组中键的值

Question

Let's say I have an array like this:

    $myArray = array( 
    'a' => 'alpha',
    'b' => array(
        'Z' => 'zulu' )
    );

I'd like to search for the key 'Z' and replace its value.

I've tried iterators, foreach loops, etc but no luck.

* Amended syntax.

Answer 1

You can pass a reference to array_walk_recursive:

   $myArray = array( 
    'a' => 'alpha',
    'b' => array(
        'Z' => 'zulu' )
    );

$newvalue = 'zebra';

array_walk_recursive($myArray, function(&$value, $key) use($newvalue){
    if($key=='Z'){
        $value = $newvalue;
    }
});

print_r($myArray);

example: http://codepad.viper-7.com/ajsYEn