- print_r: documentation ( source)
- str_replace: documentation ( source)
- array_walk_recursive: documentation ( source)
<?php
$array = array('R$ 50,00', 'R$55.55', array(123, 'abc', false, array('RS', 'R$1')));
$callback = function(&$item, $key) {
$item = str_replace('R$ ', ' ', $item);
};
array_walk_recursive($array, $callback);
print_r($array);