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<?php $lookup = ['symbol', 'letter', 'number', 'space']; $tests = ['A', 'z', '+', '0', 'ǻ', 'Ͱ', ' ', '₉']; foreach ($tests as $test) { $index = preg_match('~(\pL)|(\pN)|(\pZ)~u', $test, $out) ? array_key_last($out) : 0; echo "{$test}: {$lookup[$index]}\n"; }
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
A: letter z: letter +: symbol 0: number ǻ: letter Ͱ: letter : space ₉: number
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 7.2.0 - 7.2.34
Fatal error: Uncaught Error: Call to undefined function array_key_last() in /in/IAOfC:6 Stack trace: #0 {main} thrown in /in/IAOfC on line 6
Process exited with code 255.
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