To understand the difference better, let's see some examples. Making statements based on opinion; back them up with references or personal experience. Value of reference variable ${$name} is assigned as Dog and ${${$name}} as Monkey.
brightness_4 How to post data using file_get_contents in PHP ? By using our site, you
What does this mean for the future of AI, edge…, What I learned from hiring hundreds of engineers can help you land your next…, Hot Meta Posts: Allow for removal by moderators, and thoughts about future…, Goodbye, Prettify. Reference - What does this error mean in PHP? PHP $ and $$ Variables The $var (single dollar) is a normal variable with the name var that stores any value like string, integer, float, etc. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. What does symbol tilde (~) denotes in CSS ? Reference — What does this symbol mean in PHP? code. How could the US Congress reduce the size of the US Supreme Court? Here is an example: My question is basically what does $this->$k mean? How should I tell manager? What is the difference between . From the given figure below, it can be easily understood that: So, the value of “for geeks” can be accessed by two ways which are listed below: Below examples illustrate the use of $ and $$ in PHP: edit How to Remove Special Character from String in PHP ? Hello highlight.js! How to change the style of alert box using CSS ?
How does the highlight.js change affect Stack Overflow specifically?
By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Please use ide.geeksforgeeks.org, generate link and share the link here. What does $$ (dollar dollar or double dollar) means in PHP ? Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below. © Copyright 2011-2018 www.javatpoint.com. your coworkers to find and share information. All rights reserved. Why does sizeof(x++) not increment x in C? I figured it might mean the member variable that goes by the name of whatever is in $this->_tbl_key, but how would that work? Why does AngularJS include an empty option in select ? Is this 230V steampunk metal robot lamp safe? Employer planning on making a change that I'm prepared to quit over. Can we recover? Example: echo $Geeks; which will give output as “for Geeks” (without quote marks).
Is it the same elsewhere? Why does canvas.toDataURL() throws a security exception? The $$var (double dollar) is a reference variable that stores the value of the $variable inside it. What does it mean to start a PHP function with an ampersand?
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