- print_r: documentation ( source)
- explode: documentation ( source)
<?php
$str = 'Level 1:Level 2:Level 3:Level 4:Level 5';
echo $str . '<br />';
$levels = array();
$levels = explode( ':', $str );
echo "Level:" . $levels[1];
echo '<pre>' . print_r( $levels , TRUE ) . '</pre>';
?>