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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) $element; echo var_export($int, true) . " is numeric", PHP_EOL; $float = (float) $element; echo var_export($float, 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 42.0 is numeric 1337 is numeric 1337.0 is numeric 1337 is numeric 1337.0 is numeric 1337 is numeric 1337.0 is numeric 1337 is numeric 1337.0 is numeric 1337 is numeric 1337.0 is numeric 'not numeric' is NOT numeric array ( ) is NOT numeric 9 is numeric 9.1 is numeric NULL is NOT numeric

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