- print_r: documentation ( source)
<?php
$array1 = array('A', 'B', 'C');
$array2 = array('1', '2', '3','4','5', '6', '7','8');
$result = array();
foreach($array1 as $val)
{
foreach($array2 as $co)
{
$result[] = $val.":".$co;
}
}
print_r($result);