[SOLVED] New to regex

[kts]

Hi, I'm trying to cut a string. I have anywhere from 1 to 10 #s then " - " then item name.

 

I am trying to just cut the number from the beginning. I was using the trim functions and such, but it is a very bad practice. I was told you can accomplish this mostly error free in regex? I tried [0-9], but it only grabbed one digit.

[gevans]

[0-9] will match any single integer

 

[0-9]{10} will match any 10 integers

 

^[0-9]{10} will match any 10 integers fron the start

[gevans]

Take a look at Nick's Regular Expressions tutorial

[.josh]

you need to give some actual example formats. Are there spaces between the hyphen? anything else on the line? etc..

[kts]

it has space after the id and then a hyphen as well as another space after.

 

from testing it seems if I grab the numbers from start /^[0-9]{1,}/ seems to be working fine, but someone mentioned /d+?

[.josh]

^\d+

[.josh]

fyi {1,} is the same as doing + and \d is mostly the same as doing [0-9] (it also includes exponents)

[kts]

Cool thanks a lot guys. Regex is much more powerful than I thoguht.

[nrg_alpha]

$str = 'Cool thanks a lot guys. Regex is much more powerful than I thoguht.';
$str = str_replace('ogu', 'oug', $str);