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<?php $characters = ["A", "a", "1", " ", "\t", "\u{2603}", "\u{0416}", "\u{200e}"]; foreach ($characters as $character) { var_dump(IntlChar::isalnum($character)); }
Output for 7.0.0 - 7.0.4, 7.0.6 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
bool(true) bool(true) bool(true) bool(false) bool(false) bool(false) bool(true) bool(false)
Output for 8.0.13
Fatal error: Uncaught Error: Class "IntlChar" not found in /in/F25ug:5 Stack trace: #0 {main} thrown in /in/F25ug on line 5
Process exited with code 255.
Output for 7.0.5, 7.3.32 - 7.3.33, 7.4.33
Fatal error: Uncaught Error: Class 'IntlChar' not found in /in/F25ug:5 Stack trace: #0 {main} thrown in /in/F25ug on line 5
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: Class 'IntlChar' not found in /in/F25ug on line 5
Process exited with code 255.

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