PHP与JavaScript下Cookie的交互使用
下面的例子列出几种情形交互场景,列出JS和php交互的方法。总结下,以免日后再为cookie问题困扰。
setcookie.php
<?php
setcookie('php_cn_ck','php_中文_cookie');
setcookie('php_en_ck','php_english_cookie');
?>
<script src=
"cookie.js"
></script>
<script>
Cookies.set('js_cn_ck','js_中文_cookie',5000);
Cookies.set('js_en_ck','js_english_cookie');
</script>
<meta http-equiv=
"Content-Type"
content=
"text/html; charset=utf8"
>
PHP cookie已经设置<br>php_cn_ck=php_中文_cookie<br>php_en_ck=php_english_cookie<br><br>
JS cookie已经设置<br>js_cn_ck=js_中文_cookie<br>js_en_ck=js_english_cookie<br><br>
<a href=getcookie.php>读取cookie</a><br>
getcookie.php
<meta http-equiv=
"Content-Type"
content=
"text/html; charset=utf8"
>
一 读取php传送的中英文cookie<br><br>
<p>1 php读取php设置php cookie<br><br>
<?php
include
('
function
.php');
$php_cn_ck
=
$_COOKIE
['php_cn_ck'];
$un_php_cn_ck
=unescape(
$php_cn_ck
);
echo
"解码前的中文cookie:php_cn_ck=$php_cn_ck<br><br>"
;
echo
"解码后的中文cookie:un_php_cn_ck=$un_php_cn_ck<br><br>"
;
10
$php_en_ck
=
$_COOKIE
['php_en_ck'];
11
echo
"英文cookie无需解码:php_en_ck=$php_en_ck<br><br>"
;
12 ?>
13 <p>2 js读取php设置cookie<br><br>
14 <script src=
"cookie.js"
></script>
15 <script>
16 php_cn_ck=Cookies.get('php_cn_ck');
17 un_php_cn_ck = decodeURIComponent (escape(php_cn_ck));
18 document.write(
"解码前的中文cookie :php_cn_ck="
+php_cn_ck+
"<Br><br>"
);
19 document.write(
"解码后的中文cookie :un_php_cn_ck="
+un_php_cn_ck+
"<Br><br>"
);
20 php_en_ck=Cookies.get('php_en_ck');
21 document.write(
"英文cookie无需解码 :php_en_ck="
+php_en_ck+
"<Br><br>"
);
22 </script>
23 -----------------------------------------------<br>
24 二 读取JS传送的中英文cookie<br><br>
25 <p>1 php读取JS设置js cookie<br><br>
26 <?php
27
$js_cn_ck
=
$_COOKIE
['js_cn_ck'];
28
$un_js_cn_ck
=unescape(
$js_cn_ck
);
29
echo
"解码前的中文cookie:js_cn_ck=$js_cn_ck<br><br>"
;
30
echo
"解码后的中文cookie:un_js_cn_ck=$un_js_cn_ck<br><br>"
;
31
$js_en_ck
=
$_COOKIE
['js_en_ck'];
32
echo
"英文cookie无需解码:js_en_ck=$js_en_ck<br><br>"
;
33 ?>
34 </p>
35 <p>2 js读取js设置的cookie<br><br>
36 <script>
37 js_cn_ck=Cookies.get('js_cn_ck');
38 document.write(
"解码前的中文cookie :js_cn_ck="
+js_cn_ck+
"<Br><br>"
);
39
40
41 js_en_ck=Cookies.get('js_en_ck');
42 document.write(
"英文cookie无需解码 :js_en_ck="
+js_en_ck+
"<Br><br>"
);
43 </script>
44 </p>
总结:
php用自身函数读取php 的cookie,没有任何障碍,无需解码处理。
js采用cookie.js方法读取js 的cookie,没有任何障碍,无需解码处理。
js读取php的中文cookie,需要做
"decodeURIComponent (escape(php_cn_ck)) "
函数处理
php读取js的中文cookie 需要做
"unescape()"
函数处理
cookie.js
view source
print
?
01
var
Cookies = {};
02
05 Cookies.set =
function
(name, value){
06
var
argv = arguments;
07
var
argc = arguments.length;
08
var
expires = (argc > 2) ? argv[2] : null;
09
if
(expires != null){
10
var
exp
=
new
Date
();
11
exp
.setTime(
exp
.getTime() + 8*3600 + expires);
12 }
13 alert(
exp
.toGMTString());
14
var
path = (argc > 3) ? argv[3] : '/';
15
var
domain = (argc > 4) ? argv[4] : null;
16
var
secure = (argc > 5) ? argv[5] : false;
17 document.cookie = name +
"="
+ escape (value) +
18 ((expires == null) ?
""
: (
"; expires="
+
exp
.toGMTString())) +
19 ((path == null) ?
""
: (
"; path="
+ path)) +
20 ((domain == null) ?
""
: (
"; domain="
+ domain)) +
21 ((secure == true) ?
"; secure"
:
""
);
22 };
23
26 Cookies.get =
function
(name){
27
var
arg = name +
"="
;
28
var
alen = arg.length;
29
var
clen = document.cookie.length;
30
var
i = 0;
31
var
j = 0;
32
while
(i < clen){
33 j = i + alen;
34
if
(document.cookie.substring(i, j) == arg)
35
return
Cookies.getCookieVal(j);
36 i = document.cookie.indexOf(
" "
, i) + 1;
37
if
(i == 0)
38
break
;
39 }
40
return
null;
41 };
42
45 Cookies.clear =
function
(name) {
46
if
(Cookies.get(name)){
47
var
expdate =
new
Date
();
48 expdate.setTime(expdate.getTime() - (86400 * 1000 * 1));
49 Cookies.set(name,
""
, expdate);
50 }
51 };
52 Cookies.getCookieVal =
function
(offset){
53
var
endstr = document.cookie.indexOf(
";"
, offset);
54
if
(endstr == -1){
55 endstr = document.cookie.length;
56 }
57
return
unescape(document.cookie.substring(offset, endstr));
58 };