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<?php $ascii = implode('', range("\x00", "\xFF")); $unicode = ''; for ($i=0;$i<500;$i++) { $unicode .= mb_chr($i, 'UTF-8'); } $mixed = $ascii . $unicode; $pattern = '/[\W_]/'; echo 'ASCII pattern wtih ASCII characters' . \PHP_EOL; var_dump(preg_replace($pattern, '', $ascii)); echo \PHP_EOL; echo 'ASCII pattern wtih unicode characters' . \PHP_EOL; var_dump(preg_replace($pattern, '', $unicode)); echo \PHP_EOL; echo 'ASCII pattern wtih mixed characters' . \PHP_EOL; var_dump(preg_replace($pattern, '', $mixed)); echo \PHP_EOL; echo 'Unicode pattern wtih ASCII characters' . \PHP_EOL; var_dump(preg_replace($pattern . 'u', '', $ascii)); echo \PHP_EOL; echo 'Unicode pattern wtih unicode characters' . \PHP_EOL; var_dump(preg_replace($pattern . 'u', '', $unicode)); echo \PHP_EOL; echo 'Unicode pattern wtih mixed characters' . \PHP_EOL; var_dump(preg_replace($pattern. 'u', '', $mixed)); echo \PHP_EOL;
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
ASCII pattern wtih ASCII characters string(62) "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" ASCII pattern wtih unicode characters string(62) "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" ASCII pattern wtih mixed characters string(124) "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" Unicode pattern wtih ASCII characters NULL Unicode pattern wtih unicode characters string(692) "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzª²³µ¹º¼½¾ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõöøùúûüýþÿĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖėĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇňʼnŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǍǎǏǐǑǒǓǔǕǖǗǘǙǚǛǜǝǞǟǠǡǢǣǤǥǦǧǨǩǪǫǬǭǮǯǰDZDzdz" Unicode pattern wtih mixed characters NULL
Output for 7.1.0 - 7.1.33
Fatal error: Uncaught Error: Call to undefined function mb_chr() in /in/hSVV5:6 Stack trace: #0 {main} thrown in /in/hSVV5 on line 6
Process exited with code 255.
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194.77 ms | 401 KiB | 226 Q