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  1. function file_intersperse_contents($szFilename, $szInject, $szFind) {
  2.  
  3.     // Check if file exist
  4.     if(file_exists($szFilename)) {
  5.  
  6.         // If file exist
  7.         // Get the content
  8.         $szContent = file_get_contents($szFilename);
  9.  
  10.         // Replace the text
  11.         $szReplace = str_replace($szFind, $szInject, $szContent);
  12.  
  13.         // Open the file
  14.         $szFile = fopen($szFilename, 'w+');
  15.  
  16.         // Write the text into it
  17.         $bWrite = fwrite($szFile, $szReplace);
  18.  
  19.         if($bWrite) {
  20.  
  21.             // If success, close file and return true
  22.             fclose($szFile);
  23.             return true;
  24.  
  25.         }
  26.  
  27.         // If failure, close file and return false
  28.         fclose($szFile);
  29.         return false;
  30.  
  31.     }
  32.  
  33.     else {
  34.  
  35.         die('File' . $szFilename . 'does not exist!');
  36.  
  37.     }
  38.  
  39. }

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