Answer by Thusitha Sumanadasa for How to remove a line from text file using php without leaving an empty line

     $DELETE = "the_line_you_want_to_delete";     $data = file("./foo.txt");     $out = array();     foreach($data as $line) {         if(trim($line) != $DELETE) {             $out[] = $line;         }     }     $fp = fopen("./foo.txt", "w+");     flock($fp, LOCK_EX);     foreach($out as $line) {         fwrite($fp, $line);     }     flock($fp, LOCK_UN);     fclose($fp);  

this will just look over every line and if it not what you want to delete, it gets pushed to an array that will get written back to the file.