Find - IfFound - IfNotFound in CodeIgniter

Put the contents of each file in a string.
Use strstr() or stristr() to search for text in that string.
If strstr() or stristr() returns false, then the text wasn't found.

Besides that, put the files you need to search in an array and use a loop to check all files.

Example:

PHP Code:

$found = false;
$this->load->helper(array('directory','file'));
$filenames = directory_map('./mydirectory/');
foreach ($filenames as $filename) {
  $filetext = read_file('./mydirectory/' . $filename);
  if (stristr($filetext,'abc')) {
      $found = true;
      $found_in = $filename;
      break;  //exit the foreach loop
  }
}
if ($found) {
  echo 'The string "abc" was found in ' . $found_in;
}
else {
  echo 'The string "abc" was not found in any file in ./mydirectory/';
}