- print_r: documentation ( source)
- array_walk: documentation ( source)
<?php
$_arr = array('test1', 'test2', 'test3');
$_string = 'TestWalk';
print "<pre>";
//print_r(array_map(function($_arr) { return 'TestWalk' . $_arr; }, $_arr));
array_walk($_arr, function(&$item1, $prefix) {$item1 = "$prefix: $item1";} , 'fruit');
print_r($_arr);