Mistake on Setting Cookie Path and Domain in PHP

Q

What Is the Common Mistake When Setting Path and Domain on Temporary Cookies in PHP?

✍: FYIcenter.com

A

A common mistake made by many PHP developers is using an empty string for the expiration time parameter when setting path and domain for temporary cookies. The PHP script below shows an example of this mistake:

<?php
  # Incorrect use of setcookie()
  setcookie("LoginName","FYICenter", "", "/", ".fyicenter.com");

  # Correct use of setcookie()
  setcookie("PreferredColor","Blue", NULL, "/", ".fyicenter.com");
?>

If you run this script, you will get an error:

PHP Warning:  setcookie() expects parameter 3 to be long,
  string given in \php_working_with_cookies.php on line 3

⇒ Cookies Transported from Servers to Browsers in PHP

⇐ Specifying Domain and Path for a Cookie in PHP

⇑ Understanding and Managing Cookies in PHP

⇑⇑ PHP Tutorials

2016-11-03, ∼2197🔥, 0💬

Setting a Persistent Cookie in PHP
How To Set a Persistent Cookie in PHP? If you want to set a persistent cookie, you can use the setcookie() function with an extra parameter to specify its expiration time. To follow sample script sets 2 persistent cookies to be expired within 7 days: setcookie("LoginName","FYICent er");setcookie("Pr... 2016-11-04, ∼2764🔥, 0💬

Specifying Domain and Path for a Cookie in PHP
How To Specify Domain and Path for a Cookie in PHP? If you want to specify domain and path for cookie, you can use the setcookie() function with two extra parameters. The sample PHP script below shows you how to set the domain and path attributes for temporary and persistent cookies: <?php se... 2016-11-03, ∼2638🔥, 0💬

Domain and Path Attributes for Cookies in PHP
What Are Domain and Path Attributes for Cookies in PHP? Cookies can also be defined with two other attributes: Domain - A cookie attribute that defines the domain name of Web servers where this cookie is valid. Web browsers holding this cookie should not sent it back to any Web server outside the sp... 2016-11-03, ∼2589🔥, 0💬

Viewing Cookie Header Lines in PHP
How To View Cookie Header Lines in PHP? If you are interested to see the cookie header lines, or you are having trouble with your cookies and need to see the cookies to help debugging, you can run your script with PHP CGI interface in a command line window. The following tutorial exercise shows you ... 2016-11-02, ∼2463🔥, 0💬

Removing a Cookie in PHP
How To Remove a Cookie in PHP? Once a cookie is sent from the server to the browser, there is no direct way for the server to ask the browser to remove the cookie. But you can use the setcookie() function to send the same cookie to browser with a negative expiration time, which will cause the browse... 2016-11-03, ∼2266🔥, 0💬

Mistake on Setting Cookie Path and Domain in PHP
What Is the Common Mistake When Setting Path and Domain on Temporary Cookies in PHP? A common mistake made by many PHP developers is using an empty string for the expiration time parameter when setting path and domain for temporary cookies. The PHP script below shows an example of this mistake: &... 2016-11-03, ∼2198🔥, 0💬

Cookies Transported from Servers to Browsers in PHP
How Cookies Are Transported from Servers to Browsers in PHP? Cookies are transported from a Web server to a Web browser in the header area of the HTTP response message. Each cookie will be included in a separate "Set-Cookie:" header line in the following format: Set-Cookie: name=value; expires=time;... 2016-11-02, ∼2108🔥, 0💬

Testing Persistent Cookies in PHP
How To Test Persistent Cookies in PHP? If you want to test persistent cookies, you can copy the following PHP script, setting_persistent_cookies.php ,to your Web server: <?php setcookie("LoginName","FYICent er");setcookie("PreferredColor","Bl ue");setcookie("CouponNumber","0747 0433",time()+60... 2016-11-03, ∼2063🔥, 0💬

Cookies Transported from Browsers to Servers in PHP
How Cookies Are Transported from Browsers to Servers in PHP? Cookies are transported from a Web browser to a Web server in the header area of the HTTP request message. Each cookie will be included in a separate "Cookie:" header line in the following format: GET / HTTP/1.1 Cookie: name1=value1 Cookie... 2016-11-02, ∼2058🔥, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.