本文实例讲述了PHP与JavaScript针对Cookie的读写、交互操作方法。分享给大家供大家参考,具体如下:
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。
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<?php setcookie( 'php_cn_ck' , 'php_中文_cookie' ); setcookie( 'php_en_ck' , 'php_english_cookie' ); ?> |
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<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 cookie已经设置:
php_cn_ck=php_中文_cookie
php_en_ck=php_english_cookie
JS cookie已经设置:
js_cn_ck=js_中文_cookie
js_en_ck=js_english_cookie
读取cookie
一 读取php传送的中英文cookie
1 php读取php设置php cookie
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<?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>" ; ?> |
2 js读取php设置cookie
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<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> |
二 读取JS传送的中英文cookie
1 php读取JS设置js cookie
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<?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>" ; ?> |
2 js读取js设置的cookie
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<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> |
总结:
1. php用自身函数读取php 的cookie,没有任何障碍,无需解码处理。
2. js采用cookie.js方法读取js 的cookie,没有任何障碍,无需解码处理。
3. js读取php的中文cookie,需要做 "decodeURIComponent (escape(php_cn_ck)) "函数处理
4. php读取js的中文cookie 需要做 "unescape()" 函数处理
cookie.js:
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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)); }; |
希望本文所述对大家PHP程序设计有所帮助。