Question

I am trying to match some link from some texts:

$reg = '#ok is it http://google.com/?s=us#';
$page = 'Well i think ! ok is it http://google.com/?s=us&ui=pl0 anyways it ok';

if(preg_match($reg,$page)){
  echo 'it work'; 
}else{
  echo 'not work';
}

Now the problem is , if i use $reg = '#ok is it http://google.com/'; then its ok but when i use that one with “?=” it doesnt.

ok ! i understand there is some problem of syntax error is there any function or ready made function which automatically escape these special characters ?

Answer 1

You have a lot of syntax errors. You must escape all the special chars as ‘.’, ‘?’ and so on. Thus you have to replace the chars like this:

'.' -> '\.'
'?' -> '\?'
...

Anyway, the regex should be like this:

$reg = '#ok is it http:\/\/google\.com/\?s=us#';