global-replace.php

<?php
    exec("/bin/grep -r '$oldword' $rootpath", $results, $errorCode);
    if ($errorCode){
        if ($errorCode == 1){
            echo "Possibly no files were found with $oldword in them<BR>\n";
        }
      echo "OS Error: $errorCode<BR>\n";
      echo "Check 'man errno' and count down<BR>\n";
      echo "Usually paths/permissions<BR>\n";
    }
    while (list(,$path) = each($results)){
        $parts = explode(':', $path);
        $path = $parts[0];
      $fp = fopen($path, 'r') or print("Cannot read $path<BR>\n");

      if ($fp){
        $data = fread($fp, filesize($path));
        fclose($fp);
        $newdata = str_replace($oldword, $newword, $data);
        $fp = fopen($path, 'w') or print("Cannot write $path<BR>\n");
        if ($fp){
          fwrite($fp, $newdata);
          fclose($fp);
          echo $path, "<BR>\n";
        }
      }
    }
?>