--TEST--preg_grep() 2nd test--FILE--<?phpvar_dump(preg_grep(1,array(),3,4));var_dump(preg_grep(1, 2));var_dump(preg_grep('/+/', array()));$array = array(5=>'a', 'x' => '1', 'xyz'=>'q6', 'h20');var_dump(preg_grep('@^[a-z]+@', $array));var_dump(preg_grep('@^[a-z]+@', $array, PREG_GREP_INVERT));ini_set('pcre.recursion_limit', 1);var_dump(preg_last_error() == PREG_NO_ERROR);var_dump(preg_grep('@^[a-z]+@', $array));var_dump(preg_last_error() == PREG_RECURSION_LIMIT_ERROR);?>--EXPECTF--Warning: preg_grep() expects at most 3 parameters, 4 given in %sgrep2.php on line 3NULLWarning: preg_grep() expects parameter 2 to be array, integer given in %sgrep2.php on line 4NULLWarning: preg_grep(): Compilation failed: nothing to repeat at offset 0 in %sgrep2.php on line 5bool(false)array(3) {  [5]=>  string(1) "a"  ["xyz"]=>  string(2) "q6"  [6]=>  string(3) "h20"}array(1) {  ["x"]=>  string(1) "1"}bool(true)array(0) {}bool(true)--UEXPECTF--Warning: preg_grep() expects at most 3 parameters, 4 given in %sgrep2.php on line 3NULLWarning: preg_grep() expects parameter 2 to be array, integer given in %sgrep2.php on line 4NULLWarning: preg_grep(): Compilation failed: nothing to repeat at offset 0 in %sgrep2.php on line 5bool(false)array(3) {  [5]=>  string(1) "a"  [u"xyz"]=>  string(2) "q6"  [6]=>  string(3) "h20"}array(1) {  [u"x"]=>  string(1) "1"}bool(true)array(0) {}bool(true)