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php如何删除cookies

时间:2021-07-01 10:21:17 帮助过:11人阅读

php删除cookies的方法:1、使用“setcookie('cookiename', '')”方法将cookie的值设置为空;2、通过“setcookie('cookiename','',time()-3600);”方法。

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php删除/清除cookie的两种方法

将cookie的值设置为空,即:setcookie('cookiename', '')或者setcookie(cookiename, NULL);

将cookie的过期时间设置为过去,即:setcookie('cookiename','',time()-3600);

方法一:将cookie的值设置为空

<?php
setcookie ( "cookie_user", "test", time () + 60 * 60 * 24 * 30 );
setcookie ( "cookie_pass", md5 ( "test" ), time () + 60 * 60 * 24 * 30 );
function logout() {
  setcookie ( "cookie_user", "", time () + 60 * 60 * 24 * 30 );
  setcookie ( "cookie_pass", "", time () + 60 * 60 * 24 * 30 );
}
/* http://www.manongjc.com/article/1253.html */
logout ();
echo $_COOKIE ['cookie_user'] . "<br />";
echo "You have successfully logged out.";
?>

第二种方法:将cookie的过期时间设置为过去

<?php
setcookie ( "cookie_user", "test", time () + 60 * 60 * 24 * 30 );
setcookie ( "cookie_pass", md5 ( "test" ), time () + 60 * 60 * 24 * 30 );
function logout() {
  setcookie ( "cookie_user", "test", time () - 100 );
  setcookie ( "cookie_pass", md5 ( "test" ), time () - 100 );
}
logout ();
echo $_COOKIE ['cookie_user'] . "<br />";
echo "You have successfully logged out.";
?>

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