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run code in 300+ PHP versions simultaneously
<?php $str = 'abcdef'; $str2 = '山本山本本山本山本本山本山本本山本山本本山本山本本山本山本本'; echo strlen($str); // 7 echo mb_strlen($str2, "UTF-8"); // 6 ?>
Output for git.master, git.master_jit, rfc.property-hooks
630

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