Question

Considering an array of strings:

$array = ('hello', 'hello1', 'hello2');

I need to preg_quote($value,'/'); each of the values.

I want to avoid using foreach. Array walk doesn’t work because it passes the key too.

array_walk($array,'preg_quote','/'); //> Errors, third parameter given to preg_quote

Any alternative?

Answer 1

Try array_map() ^[doc] with an anonymous function (>= 5.3):

$array = array_map(function($value){
    return preg_quote($value, '/');
}, $array);

Working demo