- print_r: documentation ( source)
- array_walk: documentation ( source)
<?php
$a = array('e' => 22, 'r' => 66, 't' => 88);
$b = array('t' => 65);
array_walk($a, function(&$value) {
$value = 'e ' + $value;
print $value ."\n";
});
print_r($a);