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<?php class Validator { /** * Alleen decimale cijfers * * @param mixed $var * @return bool */ public static function onlyDigits($var) { return ctype_digit($var); } } // Tests var_dump( Validator::onlyDigits('abc') ); // Moet FALSE zijn var_dump( Validator::onlyDigits('123') ); // Moet TRUE zijn
Output for git.master, git.master_jit, rfc.property-hooks
bool(false) bool(true)

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