Question

I’m trying to define an array with a list of file urls, and then have each file parsed and if a predefined string is found, for that string to be replaced. For some reason what I have isn’t working, I’m not sure what’s incorrect:

<?php

$htF = array('/home/folder/file.extension', '/home/folder/file.extension', '/home/folder/file.extension', '/home/folder/file.extension', '/home/folder/file.extension');

function update() {
global $htF;
$handle = fopen($htF, "r");
if ($handle) {
     $previous_line = $content = '';
     while (!feof($handle)) {
          $current_line = fgets($handle);

          if(stripos($previous_line,'PREDEFINED SENTENCE') !== FALSE)
          {
               $output = shell_exec('URL.COM');
               if(preg_match('#([0-9]{1,3}\.){3}[0-9]{1,3}#',$output,$matches))
               {
                    $content .= 'PREDEFINED SENTENCE '.$matches[0]."\n";
               }
          }else{
               $content .= $current_line;
          }
          $previous_line = $current_line;
     }
     fclose($handle);

     $tempFile = tempnam('/tmp','allow_');
     $fp = fopen($tempFile, 'w');
     fwrite($fp, $content);
     fclose($fp);
     rename($tempFile,$htF);
     chown($htF,'admin');
     chmod($htF,'0644');
}
}
array_walk($htF, 'update');
?>

Any help would be massively appreciated!

Answer 1

• Do you have permissions to open the file?
• Do you have permissions to write to /tmp ?
• Do you have permissions to write to the destination file or folder?
• Do you have permissions to chown?
• Have you checked your regex? Try something like http://regexpal.com/ to see if it’s valid.

Try adding error messages or throw Exceptions for all of the fail conditions for these.