Online PHP editor | refs for cpP0A

<?php echo 1 . "\n"; echo strstr('abbaabbaaaabbaaab', 'bb'); echo 2 . "\n"; echo strstr('bbaaaaaaa', 'bb'); echo 3 . "\n"; echo strstr('aaaaaaa', 'bb'); echo 4 . "\n"; echo strstr('aaaaaaa', 'bb'); echo 5 . "\n"; echo strstr('aaaaaaabb', 'bb'); echo 6 . "\n"; echo strstr('aaabbaaaabb', 'bb');