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<?php function replace4byte($string) { return preg_replace('%(?: \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3 | [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15 | \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16 )%xs', '', $string); } echo replace4byte(\u2019);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Undefined constant "u2019" in /in/4eFNt:11 Stack trace: #0 {main} thrown in /in/4eFNt on line 11
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught Error: Undefined constant 'u2019' in /in/4eFNt:11 Stack trace: #0 {main} thrown in /in/4eFNt on line 11
Process exited with code 255.
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Fatal error: Undefined constant 'u2019' in /in/4eFNt on line 11
Process exited with code 255.
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195.89 ms | 402 KiB | 227 Q