<html><body>$str = "This is nice";echo strlen($str)."<br>"; // Using strlen() to return the string lengthecho substr_count($str,"is")."<br>"; // The number of times "is" occurs in the stringecho substr_count($str,"is",2)."<br>"; // The string is now reduced to "is is nice"echo substr_count($str,"is",3)."<br>"; // The string is now reduced to "s is nice"echo substr_count($str,"is",3,3)."<br>"; // The string is now reduced to "s i"</body><!-- Mirrored from www.w3schools.com/php/phptryit.asp?filename=tryphp_func_string_substr_count2 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:51:07 GMT --></html>