Online PHP editor | output for 9dMTh

<?php $values = [ "Zero Width Space" => "MaxMustermann", "Zero Width Space" => "Max\u{200B}Mustermann", "Zero Width Non-Joiner" => "Max\u{200C}Mustermann", "Zero Width Joiner" => "Max\u{200D}Mustermann", "Zero Width No-Break Space" => "Max\u{FEFF}Mustermann", ]; $checker = new \Spoofchecker(); $checks = \Spoofchecker::INVISIBLE | \Spoofchecker::MIXED_NUMBERS | \Spoofchecker::HIDDEN_OVERLAY; $checks |= \Spoofchecker::SINGLE_SCRIPT; $checker->setRestrictionLevel(\Spoofchecker::MODERATELY_RESTRICTIVE); $checker->setAllowedLocales('de,fr,it'); $checker->setChecks($checks); foreach ($values as $check => $value) { echo $check."\n"; var_dump(preg_match('/[\x{200B}\x{200C}\x{200D}\x{FEFF}\x{2060}\x{2061}\x{2062}\x{2063}\x{2064}]/u', $value)); var_dump($checker->isSuspicious($value, $errorCode)); var_dump($errorCode); echo "\n"; }