What is the difference between $message and $$message?

Posted on Updated on

$message is a simple variable whereas $$message is a reference variable. Example:
$user = ‘bob’

is equivalent to

$holder = ‘user’;
$$holder = ‘bob’;

Advertisements

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s