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Differences between Simple Variables and Variable Variables
What is the difference between $message and $$message in PHP?
✍: FYIcenter
$message is a simple variable with a fixed name which is called "message".
$$message is a variable variable with a variable name which is stored in another variable called $message.
If $message contains "user", $$message is the same as $user. For example, this code will produce "bob" and "bob":
<?php $holder = 'user'; $$holder = 'bob'; echo $$holder; echo $user; ?>
2007-02-27, 5405👍, 0💬
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