arrays - php in_array() usage -

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i have array of data , checking result using in_array() function, yet reason returning false???

here code:

    var_dump($result);     var_dump(in_array("result", $result));

and here output:

array(4) {   ["timestamp"]=>   string(29) "#wed jul 20 22:00:32 pdt 2011"   ["cause"]=>   string(34) "username , password not match"   ["result"]=>   string(5) "false"   [""]=>   null } bool(false)

i'm confused???

you looking key not value. want use function:

http://php.net/manual/en/function.array-key-exists.php


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