Undefined Variable

[eldan88]

Hey Guys. I Have a quick questions. I keep getting an "undefined variable" when php parses the following code

 echo "<div class='menu'>${$this->price}</div>"."<br>";

However when I put a space after the dollar sign it works fine...

 echo "<div class='menu'>$ {$this->price}</div>"."<br>";

Doesn't the curly braces tells php to seperate strings from variables? I'm a little bit confused. Thanks!

[Jacques1]

Doesn't the curly braces tells php to seperate strings from variables?

 

No. It tells PHP to interpret $this->price as a variable name:

<?php
 
$var_name = 'foo';
$foo = 'bar';
echo "${$var_name}";    // the same as $foo

See variable variables.

 

You need to escape the dollar sign, which is good practice anyway.

[eldan88]

Okay. I got it. Thanks!