CODEWITHSUNDEEP
phpregexapache
TechChef
TechChef

Reputation: 39

Warning: preg_replace(): Compilation failed: nothing to repeat at offset 5

As i mentioned in title i am getting the error of *Warning: preg_replace(): Compilation failed:* which is really weird for me;

actually on the VPS of godaddy i moved my site; first i got an error of GD library; so i installed GD library by using easy apache from WHM, then now when i m trying to run my website i am getting this warning, Warning: preg_replace(): Compilation failed: nothing to repeat at offset 5 on this page techchef.org/development/module/newsfeed/LoadDataFromFeed.php

however the same script runs on my another server which is techchef.org/development/module/newsfeed/LoadDataFromFeed.php and it works fine

here is the script i am not sure if it is because of apache settings, if yes then what actually i missed.

Below is the php script for which it mentioned the error

$str= strtolower($str);
      $str= preg_replace("/(à|á|?|?|ã|â|?|?|?|?|?|a|?|?|?|?|?)/","a",$str);  
      $str= preg_replace("/(è|é|?|?|?|ê|??|?|?|?|?)/","e",$str);  
      $str= preg_replace("/(ì|í|?|?|i)/","i",$str);  
      $str= preg_replace("/(ò|ó|??|??|õ|ô|?|?|?|?|?|o|??|?|?|?|?)/","o",$str);  
      $str= preg_replace("/(ù|ú|?|?|u|u|?|?|?|?|?)/","u",$str);  
      $str= preg_replace("/(?|ý|?|?|?)/","y",$str);  
      $str= preg_replace("/(d)/","d",$str);  
      $str= preg_replace("/(!|@|%|\^|\*|\(|\)|\+|\=|\<|\>|\?|\/|,|\.|\:|\;|\'| |\"|\&|\#|\[|\]|~|$|_)/","-",$str); 
      $str= preg_replace("/(-+-)/","-",$str); 
      $str= preg_replace("/(^\-+|\-+$)/","",$str); 
      $str= preg_replace("/(-)/"," ",$str);

Upvotes: 0

Views: 4987

Answers (1)

Sammitch
Sammitch

Reputation: 32272

When you copied the code from wherever you've munged the formatting/encoding.

$str= preg_replace("/(à|á|?|?|ã|â|?|?|?|?|?|a|?|?|?|?|?)/","a",$str);
                       // ^- offset 5

Educated guess, this [and all the other question marks] should be another a-like character, and not a question mark. ? is a metacharacter to do with repetition [0 or 1] and should be escaped for a literal ?.

Same goes for the other expressions.

Upvotes: 3

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