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<title><![CDATA[向东博客 专注WEB应用 构架之美 --- 构架之美，在于尽态极妍 | 应用之美，在于药到病除]]></title> 
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<copyright><![CDATA[向东博客 专注WEB应用 构架之美 --- 构架之美，在于尽态极妍 | 应用之美，在于药到病除]]></copyright>
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<title><![CDATA[php setcookie时value为null或空字符串，会删除此cookie]]></title> 
<author>jack &lt;xdy108@126.com&gt;</author>
<category><![CDATA[Php/Js/Shell/Go]]></category>
<pubDate>Fri, 15 Nov 2013 03:58:36 +0000</pubDate> 
<guid>https://jackxiang.com/post//</guid> 
<description>
<![CDATA[ 
	背景：Set Cookie时出现两个相同的cookie的key和一样value值 送出，用Cookie::delete(&#039;language1&#039;);出现第一个给删除了，第二个送出，删除了会在浏览器上提示：值为”deleted”, 过期时间为 Thu, 01-Jan-1970 08:00:01 CST 或者说是 Thu, 01-Jan-1970 00:00:01 GMT<br/>看实现：<br/><textarea name="code" class="php" rows="15" cols="100">
&nbsp;&nbsp;&nbsp;&nbsp;/**
&nbsp;&nbsp;&nbsp;&nbsp; * Deletes a cookie by making the value NULL and expiring it.
&nbsp;&nbsp;&nbsp;&nbsp; *
&nbsp;&nbsp;&nbsp;&nbsp; * @param&nbsp;&nbsp; string&nbsp;&nbsp; cookie name
&nbsp;&nbsp;&nbsp;&nbsp; * @return&nbsp;&nbsp;boolean
&nbsp;&nbsp;&nbsp;&nbsp; */
&nbsp;&nbsp;&nbsp;&nbsp;public static function delete ($name)
&nbsp;&nbsp;&nbsp;&nbsp;&#123;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Remove the cookie
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;unset($_COOKIE[$name]);
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// Nullify the cookie and make it expire
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return self::set($name, NULL, - 86400);
&nbsp;&nbsp;&nbsp;&nbsp;&#125;
</textarea><br/>上面用的是NULL，于是找到一篇文章讲这个的：<br/>php setcookie时value为null或空字符串，会删除此cookie：<br/>http://www.zhaokunyao.com/archives/4346
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<title><![CDATA[[评论] php setcookie时value为null或空字符串，会删除此cookie]]></title> 
<author> &lt;user@domain.com&gt;</author>
<category><![CDATA[评论]]></category>
<pubDate>Thu, 01 Jan 1970 00:00:00 +0000</pubDate> 
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