How do I use preg replace to remove this?

Question

I have a string $test='23487°';

How can I remove all the instances of the little circle that appears in the string using preg replace?

What to I enter for the regex to remove it?

EDIT - as Pekka says, str_replace is better I am now using that. But the little circle is still not recognized by PHP...

Answer 1

You don't need regex, just str_replace :

$test = str_replace('°', '', $test);

The first parameter is the search term – the bit that will be found. The second parameter is the replacement string – the text that will be inserted instead. A blank string means "replace it with nothing", ie "remove it". The third parameter is the string on which to operate.

Answer 2

try with:

$test = preg_replace('/[^(\x20-\x7F)]*/','', $test);

this will replace all your non ascii characters from your string.

Answer 3

If you want to use preg_replace, you can do it like this:

$test = preg_replace('[°]', '', $test);

Also, for reference, here is a great site to test your regex: http://www.solmetra.com/scripts/regex/index.php