- print_r: documentation ( source)
- array_walk: documentation ( source)
<?php
$aTest = array(4,"f","_","test");
$aReindexed = array();
array_walk($aTest, function(&$v,$k) use (&$aReindexed) {
$kNew = $k+100;
$aReindexed[$kNew] = $v;
} );
print_r($aReindexed);
?>