key               561 ext/spl/spl.php function key();
key               846 ext/spl/spl.php function key() {/**/}
key              1007 ext/spl/spl.php function key() {/**/}
key              1060 ext/spl/spl.php function key() {/**/}
key              1118 ext/spl/spl.php function key() {/**/}