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<?php $numeric_string = '42'; $integer = 42; $test = 'test'; ctype_digit($numeric_string); // true ctype_digit($integer); // false ctype_digit($test); // false is_numeric($numeric_string); // true is_numeric($integer); // true is_numeric($test); // true
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Deprecated: ctype_digit(): Argument of type int will be interpreted as string in the future in /in/ej24X on line 9
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 Deprecated: ctype_digit(): Argument of type int will be interpreted as string in the future in /in/ej24X on line 9
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
preferences:
199.9 ms | 402 KiB | 291 Q