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<?php $tests = array( "42", 1337, 0x539, 02471, '0b10100111001', 1337e0, "not numeric", array(), 9.1 ); foreach ($tests as $element) { if (is_numeric($element)) { echo "'{$element}' is numeric", PHP_EOL; } else { echo "'{$element}' is NOT numeric", PHP_EOL; } }
Output for 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
'42' is numeric '1337' is numeric '1337' is numeric '1337' is numeric '0b10100111001' is NOT numeric '1337' is numeric 'not numeric' is NOT numeric Warning: Array to string conversion in /in/G4VQb on line 19 'Array' is NOT numeric '9.1' is 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 '42' is numeric '1337' is numeric '1337' is numeric '1337' is numeric '0b10100111001' is NOT numeric '1337' is numeric 'not numeric' is NOT numeric Warning: Array to string conversion in /in/G4VQb on line 19 'Array' is NOT numeric '9.1' is numeric
Output for 5.6.0 - 5.6.27, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
'42' is numeric '1337' is numeric '1337' is numeric '1337' is numeric '0b10100111001' is NOT numeric '1337' is numeric 'not numeric' is NOT numeric Notice: Array to string conversion in /in/G4VQb on line 19 'Array' is NOT numeric '9.1' is numeric
Output for 7.3.32 - 7.3.33
'42' is numeric '1337' is numeric '1337' is numeric '1337' is numeric '0b10100111001' is NOT numeric '1337' is numeric 'not numeric' is NOT numeric 'Array' is NOT numeric '9.1' is numeric
preferences:
180.74 ms | 401 KiB | 203 Q