ereg_replace or Preg_replace

[joeblock]

Hello,

I am still having problems with understanding reg expressions!

Can someone please help with this problem:

How do I change every occurance in a string of a variable length string.

i.e. $string = " jashaskgaska asdgasdgas skgas XXXXhcdgashg asfhgashjgas asgashgYYYY
sajkyfash asjghaskfjsh XXXX dhsdhd YYYY";

and make it

$string = " jashaskgaska asdgasdgas skgas ZZZZZZ
sajkyfash asjghaskfjsh ZZZZZZ";

in other words change everything between XXXX and YYYY into ZZZZZZ

I think the only way to do this is with either a preg_replace or an ereg_replace.

Cheers

[drew010]

$new = preg_replace('/XXXX(.*?)YYYY/', 'ZZZZZ', $string);

something like that.

[joeblock]

Thanks Drew.. Worked like a charm