[SOLVED] preg_replace until space

[sarathi]

I was wondering how I can replace a word, starting from a $ sign, until the first space after it?

[Garethp]

Use this pattern

 

'/\$(.*?)\s$/';

 

Here's something for some reading up

 

http://www.regular-expressions.info/anchors.html

 

The $ normally signifies the end of a string, so you have to escape it when you want to use it as an alphanumeric character

[sarathi]

Thank you for your help, I changed the code a bit to fit my needs:

'~\$([a-z]*?)(?![a-z])~'

But I'm wondering how I can add a-z and 0-9?

[Garethp]

Instead of [a-z] use [a-zA-Z0-9]. That matches Lowercase, Uppercare and Numerals