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PHP

Abe Layee
Abe Layee
8,378 Points

How to count overlapping within a string using php

How do i count the overlapping in php? I know substr_count() doesn't count overlapped. In this case, "TT should should occurs two time in TTT". Is the any function that counts overlapping? Thank you

<?php
$haystack = "ACAAGACACATGCCACATTGTCC";
$needle = "ACA";
echo "</br>";
echo  $needle. " occurs ".substr_count($haystack,'ACA'). " ". "times". "</br>"
?>