- print_r: documentation ( source)
- array_shift: documentation ( source)
<?php
$array = array('one','two','tre','four','five');
$newArray = [];
foreach ($array as $el) {
foreach ($array as $el2) {
if ($el === $el2) continue;
$newArray[] = $el."/".$el2;
}
array_shift($array);
}
print_r($newArray);