Writing to a file from the second to last line

[paulmay]

Hello

I want to write to a text file, but I want to overwrite the last line in the file. For example, I want to write HELLO WORLD into this file

First Line
Second Line
Last Line

so that I get

First Line
Second Line
HELLO WORLD

What's the easiest way to do this?

Thanks

[Weedpacket]

read the file in with file();
Replace the last element of the resulting array.
Write out the resulting array (either by looping through the array and writing it out element by element, or by using join('', $array) to turn it into one big string and writing that).