How to remove $ from associative array using Json_decode in php?

Question

I am trying to use the youtube API to pulldown some videos for my site. Currently am running this code here:

//Youtube Videos Pull Down
$youtubeURL = "http://gdata.youtube.com/feeds/api/videos?alt=json&q=cats+cradle+chapel+hill&orderby=published&max-results=10&v=2";
$youtubeSearch = file_get_contents($youtubeURL, true);
$youtubeArray = json_decode($youtubeSearch, true);

Not having any problems accessing certain elements of the associative array however youtube's api is putting $ in many of its array elements .. such as [media$group]

Anytime I try to access an array with one of the $ elements in it, it doesn't work. Suggestions?

I have tried preg_replace but can't seem to get my expression right.

Answer 1

You should be able to access it just fine, you just need to make sure to use single quotes or else php will try to interpolate $group as a variable, so:
$youtubeArray['media$group']

And if you want to use it in preg_replace, you have to escape it with a backslash: \$. $ is a valid regex identifier, so the regex is getting tripped up on it.

If you do replace it though, you should use str_replace. There is no need to bring (slower) regular expressions into this.