PHP练习项目笔记之COOKIES
主要是在登录和退出的时候，设置cookies。来保存登录和安全退出
1:在登录页面设置
//设置cookies的值
_setcookies($_rows[‘tg_username’], $_rows[‘tg_uniqid’],$_clean[‘time’]);
_location(null,’index.php’);
第二步：生成cookie,
<span style="color: #008000">/*</span><span style="color: #008000">* * _setcookies * @param unknown $_username * @param unknown $_uniqid </span><span style="color: #008000">*/</span><span style="color: #0000ff">function</span> _setcookies(<span style="color: #800080">$_username</span>,<span style="color: #800080">$_uniqid</span>,<span style="color: #800080">$_time</span><span style="color: #000000">){ </span><span style="color: #008080">setcookie</span>('username',<span style="color: #800080">$_username</span><span style="color: #000000">); </span><span style="color: #008080">setcookie</span>('uniqid',<span style="color: #800080">$_uniqid</span><span style="color: #000000">); </span><span style="color: #0000ff">switch</span> (<span style="color: #800080">$_time</span><i style="color:transparent">@本文来源gaodai$ma#com搞$代*码6网</i><b>搞代gaodaima码</b><span style="color: #000000">) { </span><span style="color: #0000ff">case</span> '0' : <span style="color: #008000">//</span><span style="color: #008000"> 设置浏览器进程</span> <span style="color: #008080">setcookie</span> ( 'username', <span style="color: #800080">$_username</span><span style="color: #000000"> ); </span><span style="color: #008080">setcookie</span> ( 'uniqid', <span style="color: #800080">$_uniqid</span><span style="color: #000000"> ); </span><span style="color: #0000ff">break</span><span style="color: #000000">; </span><span style="color: #0000ff">case</span> '1' : <span style="color: #008000">//</span><span style="color: #008000"> 一天的进程</span> <span style="color: #008080">setcookie</span> ( 'username', <span style="color: #800080">$_username</span>, <span style="color: #800080">$_time</span> () + 86400<span style="color: #000000"> ); </span><span style="color: #008080">setcookie</span> ( 'uniqid', <span style="color: #800080">$_uniqid</span>, <span style="color: #800080">$_time</span> () + 86400<span style="color: #000000"> ); </span><span style="color: #0000ff">break</span><span style="color: #000000">; </span><span style="color: #0000ff">case</span> '2' : <span style="color: #008000">//</span><span style="color: #008000"> 一周的进程</span> <span style="color: #008080">setcookie</span> ( 'username', <span style="color: #800080">$_username</span>, <span style="color: #800080">$_time</span> () + 604800<span style="color: #000000"> ); </span><span style="color: #008080">setcookie</span> ( 'uniqid', <span style="color: #800080">$_uniqid</span>, <span style="color: #800080">$_time</span> () + 604800<span style="color: #000000"> ); </span><span style="color: #0000ff">break</span><span style="color: #000000">; </span><span style="color: #0000ff">case</span> '0' : <span style="color: #008000">//</span><span style="color: #008000"> 一个月的进程</span> <span style="color: #008080">setcookie</span> ( 'username', <span style="color: #800080">$_username</span>, <span style="color: #800080">$_time</span> () + 2592000<span style="color: #000000"> ); </span><span style="color: #008080">setcookie</span> ( 'uniqid', <span style="color: #800080">$_uniqid</span>, <span style="color: #800080">$_time</span> () + 2592000<span style="color: #000000"> ); </span><span style="color: #0000ff">break</span><span style="color: #000000">; }}</span>
第三步：登录状态中设置
<span style="color: #008000">//</span><span style="color: #008000">登录的情况,就是防止登陆后通过在浏览器中直接连接再次登录</span><span style="color: #0000ff">function</span><span style="color: #000000"> _login_state(){ </span><span style="color: #0000ff">if</span> (!<span style="color: #0000ff">isset</span>(<span style="color: #800080">$_COOKIE</span>['username'<span style="color: #000000">])) { _alert_back(</span>"登录状态无法就行本操作！"<span style="color: #000000">); }}</span>
<span style="color: #008000">//</span><span style="color: #008000">删除cookies</span><span style="color: #0000ff">function</span><span style="color: #000000"> _unsetcookies(){ </span><span style="color: #008080">setcookie</span>('username','',<span style="color: #008080">time</span>()-1<span style="color: #000000">); </span><span style="color: #008080">setcookie</span>('uniqid','',<span style="color: #008080">time</span>()-1<span style="color: #000000">); _session_destroy();</span><span style="color: #008000">//</span><span style="color: #008000">删除session</span> _location(<span style="color: #0000ff">null</span>,'index.php'); <span style="color: #008000">//</span><span style="color: #008000">做跳转</span>}
第四步在登录页面和退出页面加上
<span style="color: #008000">//</span><span style="color: #008000">登录状态</span> _login_state();
显示数据的二个方法：在数据配置文件中配置，我的是mysql.func.php
<span style="color: #008000">/*</span><span style="color: #008000">* * _fetch_array 只能获取一条数据组 * @param $_sql </span><span style="color: #008000">*/</span><span style="color: #0000ff">function</span> _fetch_array(<span style="color: #800080">$_sql</span><span style="color: #000000">) { </span><span style="color: #0000ff">return</span> <span style="color: #008080">mysql_fetch_array</span>(_query(<span style="color: #800080">$_sql</span>),<span style="color: #000000">MYSQL_ASSOC);}</span><span style="color: #008000">/*</span><span style="color: #008000">* * _fetch_array_list可以返回指定数据集的所有数据 * @param unknown $_result * @return multitype: </span><span style="color: #008000">*/</span><span style="color: #0000ff">function</span> _fetch_array_list(<span style="color: #800080">$_result</span><span style="color: #000000">){ </span><span style="color: #0000ff">return</span> <span style="color: #008080">mysql_fetch_array</span>(<span style="color: #800080">$_result</span>,<span style="color: #000000">MYSQL_ASSOC);}</span>
最后在页面中赋值
<span style="color: #008000">//</span><span style="color: #008000">从数据库里提取数据获取结果集//我们必须每次重新读取结果集，而不是从新去执行SQL语句。</span><span style="color: #800080">$_result</span> = _query("SELECT tg_username,tg_sex,tg_face FROM tg_user ORDER BY tg_reg_time DESC"<span style="color: #000000">);</span><?php <span style="color: #0000ff">while</span> (!!<span style="color: #800080">$_rows</span> = _fetch_array_list(<span style="color: #800080">$_result</span>)) {?> <<span style="color: #008080">dl</span>> <dd <span style="color: #0000ff">class</span>="user"><?php <span style="color: #0000ff">echo</span> <span style="color: #800080">$_rows</span>['tg_username']?><?php <span style="color: #0000ff">echo</span> <span style="color: #800080">$_rows</span>['tg_sex']?></dd> <dt>$_rows</span>['tg_face']?>" alt="" /></dt>
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转载请注明原文链接：PHP习题项目笔记之COOKIES
转载请注明原文链接：PHP习题项目笔记之COOKIES
