- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Difference between the and$ operator in php
$ operator
Operator is used to define variables in php. For example, message. Such variables can contain any type of value like int, string, etc.
$$ operator
$$ is a special operator that contains the name of another variable and can be used to access the value of that variable.
Example
Following the example, shows the usage of '′vs′$' operators.
<!DOCTYPE html> <html> <head> <title>PHP Example</title> </head> <body> <?php $welcome = "message"; $message = "Welcome to Tutorialspoint"; echo $welcome; print("<br/>"); echo $$welcome; ?> </body> </html>
Output
message Welcome to Tutorialspoint
Advertisements