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<?php $tests = array( "42", 1337, 0x539, 02471, 0b10100111001, 1337e0, "not numeric", array(), 9.1, null ); foreach ($tests as $element) { if (\is_numeric($element)) { $int = (int) $element; echo var_dump($int), PHP_EOL; $float = ($element * 10); echo var_dump($float), PHP_EOL; } else { echo var_export($element, true) . " is NOT numeric", PHP_EOL; } }
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, 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
int(42) int(420) int(1337) int(13370) int(1337) int(13370) int(1337) int(13370) int(1337) int(13370) int(1337) float(13370) 'not numeric' is NOT numeric array ( ) is NOT numeric int(9) float(91) NULL is NOT numeric
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 int(42) int(420) int(1337) int(13370) int(1337) int(13370) int(1337) int(13370) int(1337) int(13370) int(1337) float(13370) 'not numeric' is NOT numeric array ( ) is NOT numeric int(9) float(91) NULL is NOT numeric
preferences:
235.26 ms | 402 KiB | 283 Q