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<?php var_dump(filter_var('-1.0', FILTER_VALIDATE_INT)); var_dump(filter_var(-1.0, FILTER_VALIDATE_INT)); function validatesAsInt($number) { $number = filter_var($number, FILTER_VALIDATE_INT); return ($number !== FALSE); } var_dump(validatesAsInt('-1.0')); var_dump(validatesAsInt(-1.0));
Output for rfc.property-hooks, git.master, git.master_jit
bool(false) int(-1) bool(false) bool(true)

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