[RESOLVED] Is preg_match_all('/$var/', $text, $match) allowed?

[sherry]

Hello.

Is preg_match_all('/$var/', $text, $match) allowed, where

$var = 'a whole lot of disclaimer stuff';

???

So far, it doesn't find the $var stuff.

I want to save info to a file, but don't want it bloated with this stuff everytime.

Thanks in advance.

[NogDog]

You'll probably want to use [man]preg_quote/man:

preg_match_all('/'.preg_quote($var).'/', $text, $match);

[NogDog]

PS: Note that if you're just looking for one specific text string, it will be faster to use [man]strpos/man or [man]strstr/man.

[sherry]

Thanks for your reply, NogDog.

Is 'preg_replace()' the function to use once e.g. 'strstr()' finds the string?

Thanks again in advance.

EDIT: With 'strstr()', it seems that it just finds the beginning of the $var string. In my case, there is info beyond the $var within the $text file. I don't want that. I only want what's contained within the $var and replace it with ' ' (delete it).

[NogDog]

You might want to look at [man]str_replace[/man] or [man]str_ireplace[/man], then.

[Weedpacket]

Also note that if the $var in preg_match('/$var/'...) (or in any string that contains $var), is supposed to be replaced by "a whole lot of disclaimer stuff" before searching, then you'll need to use double quotes to delimit your string.

If preg_replace() doesn't match the pattern being searched for, it won't change anything. It will only change the string if it does find the pattern being searched for (replacing it with whatever is specified for the replacement).

[sherry]

Thanks for all of this great info.

I used 'str_replace()' this time. I've gotten so use to using 'preg_match_all()' and 'preg_replace()' that I forgot about using 'str_replace()' today.

In order to make this work, I had to put my $var in the 'here doc' format since it spanned multiple lines that had carriage returns.

I will give the double-delimiter a try, also.

Thanks for your help!