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<!DOCTYPE html>
<html>
<body>
​
<?php
setlocale (LC_COLLATE, 'NL');
echo strcoll("Hello World!","Hello World!");
echo "<br>";
​
setlocale (LC_COLLATE, 'en_US');
echo strcoll("Hello World!","Hello World!");
?>
​
<p>If this function returns 0, the two strings are equal.</p>
​
</body>
</html>
​
0
0

If this function returns 0, the two strings are equal.