What is the differnece between $name and $$name?

[jasminjew]

hello friends,

What is the differnece between $name and $$name?

[mrvijayakumar]

HI,

Check below links with examples,

1. http://stackoverflow.com/questions/11504335/what-is-the-difference-between-a-and-a-in-php
2. http://stackoverflow.com/questions/2715654/what-does-mean-in-php?lq=1

[Webville312]

Well, $name is a variable while $$name is a reference variable.

[cereal]

Check also PHP documentation for more information: http://www.php.net/manual/en/language.variables.variable.php

[annaharris]

$name is a variable while $$name is a reference variable.

[mikerock]

If we define variable in Php, we use $ sign for variable.
as per the question what is difference between $ & $$. According my view single $ is a normal variable while $$ variable takes the value of a variable and treats that as name of a variable.

[eburlea]

$fruit = 'apple';
$$fruit = 'red';
echo $fruit . ' is ' . $apple; // returns 'apple is red'