Preg_Replace Help

[balkan7]

i need help if find text replace whit blank but this function not working blank all text.

 

<?php function clearbb($text) {
  //youtube mod
  if (preg_match("/[youtube\](.*?)\[/youtube\]/", $text)) {
  $text = preg_replace('', '', $text);
}
} ?>

[kratsg]

That first bracket hasn't been escaped, the second forward slash hasn't been escaped... And I would fix that middle function so it's a lazy search rather than a greedy search. (and there's a board for this btw :-P)

 

<?php function clearbb($text) {
  //youtube mod
  if (preg_match("/\[youtube\]([^\[]*)\[\/youtube\]/", $text)) {
  $text = preg_replace('', '', $text);
}
} ?>

 

Here's what that middle part means:

 

([^\[]*)

 

All text up to "[" will be included.

 

So, joajsfojsojfaoisjfoijsdjafjsdoifjoasdfa , it will find first, store everything after that up to the first "[", find and give you the results.

[balkan7]

i have tried but again whitout result i dont know why, not show me included text

like:

bla bla sdfdf

now everything is blank

[kratsg]

What's the purpose of that last line?

 

  $text = preg_replace('', '', $text);

[balkan7]

What's the purpose of that last line?

 

  $text = preg_replace('', '', $text);

code for replace string for news, so text of news now are blank i need text for news show bbcode of youtube not show

[kratsg]

Oh, I see how you're doing it... You're using an if/else statement to see if there's at least one match for the youtube pattern, then replacing it :-P

 

preg_replace requires that same pattern inside it to find and replace... :-o

 

 

<?php function clearbb($text) {
$pattern = "/\[youtube\]([^\[]*)\[\/youtube\]/";

  //youtube mod
  if (preg_match($pattern, $text)) {
  $text = preg_replace($pattern, '', $text);
}
} ?>

 

See if THAT works.

[balkan7]

i have tried again whitout result

not show nothing, news text, youtube bbcode.

[Ken2k7]

Dude, your sentences are poorly written.

 

Try this:

<?php
function clearbb($text) {
  //youtube mod
     $text = preg_replace("/\[youtube\](.*)\[\/youtube\]/","", $text);
}
?>

[balkan7]

yes this is propertly written but wont working to my script, i try whit another way.

thanks for support...

[GingerRobot]

Well, apart from anything else - your function doesn't return anything, or echo anything. So making a call to this function wont actually do anything.

[dsaba]

You were eating up too much with the * symbol, so I made it lazy by adding a ? should work now.

Try this yes It re something turn ok?

<?php
function clearbb($text) {
     //youtube mod
     $text = preg_replace("/\[youtube\](.*?)\[\/youtube\]/","", $text);
     return $text;
}
?>

 

However, that regex will wipe out the entire string of

lalalala! look text here, not for long!

If you just want to take out the tags themselves, try this:

$text = preg_replace('~\[youtube\](.*?)\[/youtube\]~', '$1', $text);