Copy and read a file

Hi gents, I wanna copy a file from a webserver to my webserver everytime someone runs the script A. Someone gave me the following lines for it: ****************** $fp = fopen ("http://www.ivan.ivao.org/whazzup.txt", "r"); while (!feof ($fp)) { $buffer = fgets($fp, 10000); $fo = fopen ("data_status.txt","a+"); fputs($fo,$buffer); } fclose ($fp); fclose ($fo); ****************** For sure that this works, but it appends the new file, and i want to delete all the old data and write the new one on the begin of the file. Any idea for it? The other part is that i wanna start on a specific point of the file and make a search for a word. If i find the word, it continues to look until eof. Then it returns me all the data found. Any help here also? Miguel