Exemple d'analyse des méthodes de lecture, d'écriture et de fonctionnement interactif de php+JavaScript pour les cookies

<?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>

<?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>";

 $php_en_ck=$_COOKIE['php_en_ck'];

 echo "英文cookie无需解码:php_en_ck=$php_en_ck<br><br>";

?>

<script src="cookie.js"></script>

<script>

 php_cn_ck=Cookies.get('php_cn_ck');

 un_php_cn_ck = decodeURIComponent (escape(php_cn_ck));

 document.write("解码前的中文cookie :php_cn_ck="+php_cn_ck+"<Br><br>");

 document.write("解码后的中文cookie :un_php_cn_ck="+un_php_cn_ck+"<Br><br>");

 php_en_ck=Cookies.get('php_en_ck');

 document.write("英文cookie无需解码 :php_en_ck="+php_en_ck+"<Br><br>");

</script>

<?php

 $js_cn_ck=$_COOKIE['js_cn_ck'];

 $un_js_cn_ck=unescape($js_cn_ck);

 echo "解码前的中文cookie:js_cn_ck=$js_cn_ck<br><br>";

 echo "解码后的中文cookie:un_js_cn_ck=$un_js_cn_ck<br><br>";

 $js_en_ck=$_COOKIE['js_en_ck'];

 echo "英文cookie无需解码:js_en_ck=$js_en_ck<br><br>";

?>

<script>

 js_cn_ck=Cookies.get('js_cn_ck');

 document.write("解码前的中文cookie :js_cn_ck="+js_cn_ck+"<Br><br>");

 //un_js_cn_ck = decodeURIComponent (escape(js_cn_ck)); 调用这两句会出现js解析中断

 //document.write("解码后的中文cookie :un_js_cn_ck="+un_js_cn_ck+"<Br><br>");

 js_en_ck=Cookies.get('js_en_ck');

 document.write("英文cookie无需解码 :js_en_ck="+js_en_ck+"<Br><br>");

</script>

var Cookies = {};

/**

* 设置Cookies

*/

Cookies.set = function(name, value){

 var argv = arguments;

 var argc = arguments.length;

 var expires = (argc > 2) ? argv[2] : null;

 if(expires != null){

  var exp　　 = new Date();

  exp.setTime(exp.getTime() + 8*3600 + expires);

 }

 alert(exp.toGMTString());

 var path = (argc > 3) ? argv[3] : '/';

 var domain = (argc > 4) ? argv[4] : null;

  var secure = (argc > 5) ? argv[5] : false;

 document.cookie = name + "=" + escape (value) +

 ((expires == null) ? "" : ("; expires=" + exp.toGMTString())) +

 ((path == null) ? "" : ("; path=" + path)) +

 ((domain == null) ? "" : ("; domain=" + domain)) +

 ((secure == true) ? "; secure" : "");

};

/**

* 读取Cookies

*/

Cookies.get = function(name){

 var arg = name + "=";

 var alen = arg.length;

 var clen = document.cookie.length;

 var i = 0;

 var j = 0;

 while(i < clen){

  j = i + alen;

  if (document.cookie.substring(i, j) == arg)

  return Cookies.getCookieVal(j);

  i = document.cookie.indexOf(" ", i) + 1;

  if(i == 0)

  break;

 }

 return null;

};

/**

* 清除Cookies

*/

Cookies.clear = function(name) {

 if(Cookies.get(name)){

 var expdate = new Date();

 expdate.setTime(expdate.getTime() - (86400 * 1000 * 1));

 Cookies.set(name, "", expdate);

 }

};

Cookies.getCookieVal = function(offset){

 var endstr = document.cookie.indexOf(";", offset);

 if(endstr == -1){

  endstr = document.cookie.length;

 }

 return unescape(document.cookie.substring(offset, endstr));

};