append text to a file

Hi,

I have tried with many options, eg. w+, a+, a, but none of them can
append the text to the end of the file.

This is the function I used for appending message to the file (xml_test.txt)

function dump_to_file($var)
{
$fh = fopen("/tmp/xml_test.txt", "a");
fwrite($fh, "\n----------\n");
fwrite($fh, $var);
fclose($fh);
}

What s the right way to append a message to the end of the file in PHP4/5 ?

Thanks
Sam

Hey Sam,

the mentioned functions "can" append text to a file. Maybe you can
explain, what exactly they cannot? Is the filehandler ($fh) maybe null?
Was there any error open the file (rights)?

the easier way as of php5 might be:
$old_content = file_get_contents('filename');
$new_content = $old_content . "\n" . "i love strings";
file_put_contents('filename', $new_content);

if you only have problems with the append but can totally rewrite the
file: file_get_contents is also available in php > 4.3.0. Append your
new content to its return string and write it to the file