Re: Comparing string to array

["Robin Vickery" <robinv@xxxxxxxxx>]

On 19/06/07, Richard Davey <rich@xxxxxxxxxxxxx> wrote:
>     $userparam = "test['sam'][]";
>
>     //  How to check if $userparam exists in the $_POST array
>     //  and get all the values from it?

full_key_exists("test['sam'][]", $_POST) // returns true if key is set

full_find_key("test['sam'][]", $_POST) // returns value of key or undef.

function full_key_exists ($key, $array) {
 preg_match_all('/[^][]+/', $key, $branch);

 if (!sizeof($branch[0])) false;

 foreach ($branch[0] as $index) {
   if (!(is_array($array) && isset($array[$index]))) return false;
   $array = $array[$index];
 }

 return true;
}

function full_find_key ($key, $array) {
 preg_match_all('/[^][]+/', $key, $branch);

 if (!sizeof($branch[0])) return;

 foreach ($branch[0] as $index) {
   if (!(is_array($array) && isset($array[$index]))) return;
   $array = $array[$index];
 }

 return $array;
}

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