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one preg_replace

Discuss one preg_replace in the PHP Coding forum on Codewalkers.
one preg_replace Having problems with a PHP script you are coding? This is the place to get help!

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  #1  
Old August 11th, 2002, 01:27 AM
Anonymous Anonymous is offline
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one preg_replace
I need one preg_replace function to replace "rn" with "<br>" except "rn" that beetween [textarea] and [/textarea]

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  #2  
Old August 11th, 2002, 02:02 AM
Gipz Gipz is offline
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RE: one preg_replace

you have looked at the nl2br() function?
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  #3  
Old August 12th, 2002, 02:31 AM
Kohaar Kohaar is offline
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RE: one preg_replace
Hmm.. I'm not that great with regular expressions, but I've come up with this:

php Code:
Original - php Code 
  1.  
  2. <php
  3.  
  4. $document = preg_replace ("'(<textarea[^>]*?>.*?)rn(.*?</textarea>)'si", "\1<!--new-->\2", $document);
  5. $document = preg_replace ("'rn'", "<br>", $document);
  6. $document = preg_replace ("'<!--new-->'", "rn", $document);
  7.  
  8. ?>


My problem is, that if rn appears more than once in <textarea></textarea> it is turned into <br>. I can’t seem to find the solution to this. Anyone?
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  #4  
Old August 12th, 2002, 05:47 PM
Kohaar Kohaar is offline
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RE: one preg_replace
Is ereryone just as bad as I am at this
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  #5  
Old August 12th, 2002, 09:07 PM
notepad notepad is offline
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RE: one preg_replace
woooo this was fun.. i think i acheived what you want using a whole bunch of str_replace functions lol. i didn't test it though, i'm sure you'll come up with a more better way anyhow

php Code:
Original - php Code 
  1.  
  2. <?php
  3.  
  4. $string = "here is rn some b.s. data rn [textarea]hello rn there[/textarea] rn !";
  5.  
  6. $string = str_replace("rn", "<br>", $string);
  7.  
  8. $begin_crop = strstr($string, "[textarea]");
  9. $end_crop = strstr($begin_crop, "[/textarea]");
  10. $begin_crop = str_replace($end_crop, "[/textarea]", $begin_crop);
  11.  
  12. $new_crop = str_replace("<br>", "rn", $begin_crop);
  13.  
  14. $string = str_replace($begin_crop, $new_crop, $string);
  15.  
  16. print("$string");
  17.  
  18. ?>
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  #6  
Old August 13th, 2002, 12:36 AM
Kohaar Kohaar is offline
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RE: one preg_replace
Hehe... Nice job... Only problem is if he meant <textarea> instead of [textarea]. Then you have to take something like <textarea cols="9"...> in consideration...
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  #7  
Old August 13th, 2002, 12:56 AM
notepad notepad is offline
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RE: one preg_replace
yah plus MULTIPLE textarea's within one string..
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  #8  
Old August 13th, 2002, 01:00 AM
Kohaar Kohaar is offline
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RE: one preg_replace
yep... Would still like to see it in a regular expression. Maybe I could learn somthing :-)
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  #9  
Old August 13th, 2002, 09:28 AM
Gipz Gipz is offline
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RE: one preg_replace
This matches the textareas with attributes:
php Code:
Original - php Code 
  1.  
  2. <?php
  3. $randomStr = '<body><br><br><form action="ftp://"><textarea class="test" cols="test">hej this is <br>an area <br> sddf</textarea></form><br></body>';
  4. $matches = array();
  5. preg_match('/<textarea*?[^<>]*?>(.*?)</textarea>/mi', $randomStr, $matches);
  6.  
  7. var_dump($matches); // result in $matches[1]
  8. ?>
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  #10  
Old August 13th, 2002, 11:50 AM
Kohaar Kohaar is offline
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RE: one preg_replace
Yep... Almost the same as mine in post 3... Still need a regular expresion that replaces rn with <br> outside textarea...
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  #11  
Old August 13th, 2002, 11:50 AM
Kohaar Kohaar is offline
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RE: one preg_replace
Yep... Almost the same as mine in post 3... Still need a regular expresion that replaces rn with <br> outside textarea...
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  #12  
Old August 13th, 2002, 12:34 PM
Kohaar Kohaar is offline
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RE: one preg_replace
Hmm.. Strange
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