How can PHP developers troubleshoot issues related to cookies not being set or read correctly?

To troubleshoot issues related to cookies not being set or read correctly, PHP developers can check for any errors in setting or reading the cookies, ensure that the cookie names are correct, verify that the cookie values are properly encoded, and check for any conflicting cookie settings or headers. 

// Set a cookie
setcookie("example_cookie", "example_value", time() + 3600, "/");

// Read a cookie
if(isset($_COOKIE["example_cookie"])) {
    $cookie_value = $_COOKIE["example_cookie"];
    echo "Cookie value: " . $cookie_value;
} else {
    echo "Cookie not set.";
}

Keywords

PHP cookies troubleshooting setcookie $_COOKIE

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