- print_r: documentation ( source)
- array_unique: documentation ( source)
<?php
$sam = array(Array ( "0" => Array ( "0" => 24 ),"1" => Array("0" => 25)),
Array ( "0" => Array ( "0" => 24 ),"1" => Array("0" => 25)),
Array ( "0" => Array ( "0" => 24 ),"1" => Array("0" => 25 )));
print_r(array_unique($sam));