- print_r: documentation ( source)
<?php
function arrayReplace($a1, $a2) {
foreach($a2 as $k=>$v) {
$a1[$k]=$v;
}
return $a1;
}
$a1 = array(0 => 1, 1 => "b", 3 => "carrot");
$a2 = array(1 => "c", 2 => "d", 3 => "apple");
print_r(arrayReplace($a1, $a2));