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<?php foreach (['64a', '1.42', '-43b', '+45', '2.34e4', '64'] as $id){ printf("%6s: is_numeric: %6s; ctype_digit: %6s\r\n", $id, b(is_numeric($id)), b(ctype_digit($id))); } function b($b){ return $b?'true':'false'; }
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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 - 8.3.4, 8.3.6
64a: is_numeric: false; ctype_digit: false 1.42: is_numeric: true; ctype_digit: false -43b: is_numeric: false; ctype_digit: false +45: is_numeric: true; ctype_digit: false 2.34e4: is_numeric: true; ctype_digit: false 64: is_numeric: true; ctype_digit: true
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 64a: is_numeric: false; ctype_digit: false 1.42: is_numeric: true; ctype_digit: false -43b: is_numeric: false; ctype_digit: false +45: is_numeric: true; ctype_digit: false 2.34e4: is_numeric: true; ctype_digit: false 64: is_numeric: true; ctype_digit: true
preferences:
186.51 ms | 402 KiB | 160 Q