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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)) { echo var_export($element, true) . " is numeric", PHP_EOL; } else { echo var_export($element, true) . " is NOT numeric", PHP_EOL; } } ?>
Output for git.master, git.master_jit, rfc.property-hooks
'42' is numeric 1337 is numeric 1337 is numeric 1337 is numeric 1337 is numeric 1337.0 is numeric 'not numeric' is NOT numeric array ( ) is NOT numeric 9.1 is numeric NULL is NOT numeric

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