php - how to put a Cookie into an array? -

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i'm trying store array cookie, following error:

warning: setcookie() expects parameter 2 string, array given

how can put array cookie?

edit2: edited code, , store cookie array now, i've got huge problem though. not override values first submission if size of second array smaller.

example. first submission array[1206,0402], second submission array[0402]. outcome [0402,0402] wrong.

function cuukko($var,$val){     setcookie($var,$val,time()+60*60*24*365); }  function preg_dw($var){     global $isset;     if ($isset&&is_array($_post[$var])&&sizeof($_post[$var])>0){         $c=0;         foreach ($_post[$var] $key => $value) {             $val[$c]=trim(preg_replace('/\s\s+/',' ',preg_replace('/[^\d\w\s\(\)\[\]]+/','',$value)));             cuukko($var."[".$c."]",$val[$c]);             $c++;         }     } elseif (isset($_cookie[$var])) $val=$_cookie[$var];         return (sizeof($val)>0)?$val:array(); }

edit 3: question has been resolved. code in use now:

function cuukko($var,$val){     setcookie($var,$val,time()+60*60*24*365); }  function preg_dw($var){     global $isset;     if ($isset){         $c=0;         if (is_array($_cookie[$var]))         foreach($_cookie[$var] $key =>$trash)         setcookie("{$var}[".$key.']', '', time()-60*60*24*365);         if (is_array($_post[$var]))         foreach ($_post[$var] $key => $value) {             $val[$c]=trim(preg_replace('/\s\s+/',' ',preg_replace('/[^\d\w\s\(\)\[\]]+/','',$value)));             cuukko($var."[".$c."]",$val[$c]);             $c++;         }     } elseif (isset($_cookie[$var])) $val=$_cookie[$var];         return (sizeof($val)>0)?$val:array(); }

answer

you can store cookies using array syntax , read them multi-dimensional arrays:

setcookie('array[key]', 'value'); $var = $_cookie['array']['key'];

your code this:

for($val $key=>$value)   setcookie('vals['.$key.']', $value, time()+60*60*24*365);


multi-dimensional arrays

you can store multi-dimensional arrays same way:

setcookie('array[key1][key2]', 'value'); $var = $_cookie['array']['key1']['key2'];


clearing cookie

when need clear out cookie, there multiple methods; longest being:

for($_cookie['array'] $key=>$value)   setcookie('array['.$key.']', '', time()-60*60*24*365);

the easiest , preferable way this:

setcookie('array', '', time()-60*60*24*365);


conclusion

cookies allow arrays stored using standard array syntax. storing multi-dimensional array standard syntax.

to destroy cookie array value, use same syntax normal cookie, either on whole array or on each specific element.

the documentation on setcookie() goes on this.


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