php - file append

php - file append

So far we have learned how to open, close, read, and write to a file. However, the ways in which we have written to a file so far have caused the data that was stored in the file to be deleted. If you want to append to a file, that is, add on to the existing data, then you need to open the file in append mode.

php - file open: append

If we want to add on to a file we need to open it up in append mode. The code below does just that.

PHP Code:

$myFile = "testFile.txt";

$fh = fopen($myFile, 'a');

If we were to write to the file it would begin writing data at the end of the file.

php - file write: appending data

Using the testFile.txt file we created in the File Write lesson , we are going to append on some more data.

PHP Code:

$myFile = "testFile.txt";

$fh = fopen($myFile, 'a') or die("can't open file");

$stringData = "New Stuff 1\n";

fwrite($fh, $stringData);

$stringData = "New Stuff 2\n";

fwrite($fh, $stringData);

fclose($fh);

You should noticed that the way we write data to the file is exactly the same as in theWrite lesson. The only thing that is different is that the file pointer is placed at the end of the file in append mode, so all data is added to the end of the file.