Can a cookie have multiple values?

Usually, one cookie has one value: one string. Therefore, to store multiple data in cookies, multiple cookies have to be used. This, however, could create some problems, for instance the 20 cookies per domain limit. Therefore, it might make sense to try to save multiple data in one cookie.

How do I set multiple values in cookies?

2 Answers

1. Use a cookie for each key-value you want to store: document. cookie = “myCookie=myValue”; document. cookie = “myOtherCookie=myOtherValue”;
2. Store a single cookie with a custom serialization of your complex data, for example JSON: document. cookie = “myCookie=” + JSON. stringify({foo: ‘bar’, baz: ‘poo’});

What are JavaScript cookies?

A cookie is an amount of information that persists between a server-side and a client-side. A cookie contains the information as a string generally in the form of a name-value pair separated by semi-colons. It maintains the state of a user and remembers the user’s information among all the web pages.

What are name-value pairs in cookies?

Each cookie is separated by a comma , and each cookie attributes are separated by semicolons ; . The two values required are the first name=value pair which are always string values. The remaining attributes that set other parameters of a cookie are optional and set other parameters of a cookie.

How set multiple values in cookie in PHP?

In the php manual under section “cookies” it states that you can add multiple values to a single cookie by simply adding a ‘[]’ to the cookie name.

What is cookie attribute?

The cookie-attribute command specifies the attributes to include in the DataPower generated cookie when it is returned in a Set-Cookie header. By default, the Secure and the HttpOnly attributes are included, which indicates that the cookie can be sent only when the connection is secure and the connection is over HTTPS.

How can add multiple values in cookie in PHP?

Can JavaScript set HttpOnly cookie?

1 Answer. An HttpOnly cookie means that it’s not available to scripting languages like JavaScript. So in JavaScript, there’s absolutely no API available to get/set the HttpOnly attribute of the cookie, as that would otherwise defeat the meaning of HttpOnly .

Can JavaScript access cookies?

In JavaScript, cookies can be accessed through the document. cookie object, but the interface provided by this object is very primitive. Cookies. js is a JavaScript object that allows cookies to be created, retrieved, and deleted through a simple and intuitive interface.

Are cookies sent automatically?

Cookies are sent with every request, so they can worsen performance (especially for mobile data connections). Modern APIs for client storage are the Web Storage API ( localStorage and sessionStorage ) and IndexedDB.

What does cookie path mean?

The cookie-path is a prefix of the request-path, and the last character of the cookie-path is %x2F (“/”). The cookie-path is a prefix of the request-path, and the first character of the request-path that is not included in the cookie- path is a %x2F (“/”) character.

How to set more than one cookie in JavaScript?

With JavaScript, to set more than one cookie, set document.cookie more than once using the; separator. Example You can try to run the following code to set multiple cookies: Live Demo

How to set multiple key value pairs to one cookie?

Anyone know how to set multiple key-value pair to ONE cookie? It does not make sense to store multiple key-value pairs into one cookie, because by definition a cookie represents one key-value pair. I believe you don’t understand well how document.cookie works.

How to find the value of a cookie in JavaScript?

If you want to find the value of one specified cookie, you must write a JavaScript function that searches for the cookie value in the cookie string. In the example to follow, we will create a cookie that stores the name of a visitor.

How are cookies overwritten in a JavaScript function?

If you set a new cookie, older cookies are not overwritten. The new cookie is added to document.cookie, so if you read document.cookie again you will get something like: If you want to find the value of one specified cookie, you must write a JavaScript function that searches for the cookie value in the cookie string.