What is difference between $x and $$x
Answer Posted / muzic
$x is a simple variable whereas $$x is a reference variable.
Is This Answer Correct ? | 18 Yes | 4 No |
Post New Answer View All Answers
What can php do?
How to create an empty array in php?
How to receive a cookie from the browser?
Write a program in php to print a table of a number?
What is php regular expression?
Tell me can the value of a constant change during the script's execution?
Write an example to remove html tags from a string in php?
What are sql injections, how do you prevent them and what are the best practices?
How do you destroy a session?
Tell me how is it possible to propagate a session id?
How to increase the maximum execution time of a script in php?
What is the purpose of the '.frm' file extension? What do thes file contain?
What's the difference between __sleep and __wakeup?
What is the use of $_server and $_env?
How to repeat a string to a specific number of times in php?