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<?php function findSubsequence($needle, $haystack, $offset=0) { $l=count($needle); for($i=$offset,$c=count($haystack); $i<$c; ++$i) { if($haystack[$i] === $needle[0]) { for($k=1; $k<$l; ++$k) { if($haystack[$i+$k] !== $needle[$k]) { continue 2; } } return true; } } return false; } var_dump( findSubsequence([2,4], [1,2,3,4]), findSubsequence([2,4], [1,2,4,3]) );
Output for git.master, git.master_jit, rfc.property-hooks
bool(false) bool(true)

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