What should I do if the php cookie cannot be written?

php cookie cannot be written because the cookie is written incorrectly. The solution is: first set the cookie through the "setcookie" function; then use isset and other functions to realize the function that is displayed after refreshing the page; finally execute the corresponding file That’s it.

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Code examples such as:

<?php
// 设定cookie
setcookie("cookie[three]", "cookiethree");
setcookie("cookie[two]", "cookietwo");
setcookie("cookie[one]", "cookieone");
// 刷新页面后，显示出来
if (isset($_COOKIE[&#39;cookie&#39;])) {
foreach ($_COOKIE[&#39;cookie&#39;] as $name => $value) {
echo "$name : $value
\n";
}
}
?>

Above example Will output:

three : cookiethree two : cookietwo one : cookieone

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