PHP File Manipulation

[rickead2000]

Hi,

I am trying to achieve two things with text files in PHP.

Firstly, is there a way to find out how many lines there are in a text file? I have found out to how determine the size of the file in bytes, but ideally I need to find out how to work it out in lines.

Secondly, can I somehow tell fgets() which line to start reading at? Currently, I loop fgets() $x number of times depending on which line I need to get to, although the text files I am dealing with could quite easily grow to 10000s of lines and pointlessly looping could soon cause considerable wasted cpu cycles.

Any ideas?

Thanks!

[Weedpacket]

Whatever happens, you'll need to read through the file to find the linebreaks in it (unless all lines are the same length so that the linebreaks are in predictable locations). So looping over fgets() is ultimately your best bet.

Since you describe having to look through huge files, solutions using file_get_contents(), or using count(file($filename)) to count the number of lines in the file, are clearly not viable. That leaves using fread/fgets, and in the former case, you have to find the linebreaks yourself.