preg replace not working

[newb]

$text = preg_replace('{-(\d+)}e', '-convertNumber("$1")', $text); 

 

i have strings im trying to replace like this:

 

name-2 > name-two

name-p2 > name-p2

 

im trying to match and replace the first one and basically ignore the second one. ive included the hyphen in the code. so why isnt this working?

[JasonLewis]

Try using a negative lookbehind to make sure that any digits are not preceeded by any alphanumeric characters.

 

$text = preg_replace('{(?<!\w)(\d+)}e', 'convertNumber("$2")', $text);

Not tested.

[newb]

ok, and how do i check if it contains alphanumeric chars after it: for example

 

name-2nd should stay as name-2nd

[JasonLewis]

Use a negative lookahead.

 

$text = preg_replace('{(?<!\w)(\d+)(?!\w)}e', 'convertNumber("$2")', $text);

[newb]

worked perfectly, thanks so much!