问题描述
我试图存储一个数组的cookie,但我得到以下错误:
I'm trying to store an array for cookie, but I get the following error:
警告:setcookie()期望参数2是字符串,array given
如何实际将数组放入cookie?
How can I actually put an array to a cookie?
EDIT2:我编辑了代码,我现在存储cookie数组,但是我有一个很大的问题。如果第二个数组的大小较小,它不会覆盖第一次提交的值。
I Edited the code, and I it does store cookie array now, but I've got a HUGE problem though. It does not override the values from first submission if the size of second array is smaller.
示例。第一提交数组[1206,0402],第二提交数组[0402]。但结果是[0402,0402]错了。
Example. first submission array[1206,0402], second submission array[0402]. but the outcome is then [0402,0402] which is 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] as $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)?$val:array();
}
编辑3:问题已解决。现在使用的代码:
Edit 3: The question has been resolved. The code in use now:
function cuukko($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] as $key =>$trash)
setcookie("{$var}[".$key.']', '', time()-60*60*24*365);
if (is_array($_POST[$var]))
foreach ($_POST[$var] as $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();
}
推荐答案
b
$ b
您可以使用数组语法存储Cookie,并将其读为多维数组:
Answer
You can store cookies using array syntax and read them as a multi-dimensional arrays:
setcookie('array[key]', 'value');
$var = $_COOKIE['array']['key'];
您的代码将如下所示:
for($val as $key=>$value)
setcookie('vals['.$key.']', $value, time()+60*60*24*365);
您也可以以同样的方式存储多维数组:
You can also store multi-dimensional arrays the same way:
setcookie('array[key1][key2]', 'value');
$var = $_COOKIE['array']['key1']['key2'];
当您需要清除Cookie时,有多种方法;最长的是:
When you need to clear out the cookie, there are multiple methods; the longest being:
for($_COOKIE['array'] as $key=>$value)
setcookie('array['.$key.']', '', time()-60*60*24*365);
最简单和最可取的方法是:
The easiest and most preferable way is this:
setcookie('array', '', time()-60*60*24*365);
Cookie允许使用标准数组语法存储数组。存储多维数组也是标准语法。
Cookies allow arrays to be stored using standard array syntax. Storing a multi-dimensional array is also standard syntax.
要销毁带有数组值的cookie,请使用与普通cookie相同的语法,在整个数组或每个特定元素。
To destroy a cookie with an array value, use the same syntax as for a normal cookie, either over the whole array or on each specific element.
的文档。
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