CODEWITHSUNDEEP
phpfileloopstextfilesystems
user11464975
user11464975

Reputation:

How to make it so feof doesn't count the last line of file?

So I have this code set up like this 

 while(! feof($fn))  {
  $result = fgets($fn);
// some code
}

How do I make it so it ignores the last line in the text file. My text file is set up so when something gets added it adds a new line afterwards. Doing it this way creates an error of an offset due to no data being put in for the last line.

I've already tried doing it so it adds a new line before the data, but then it creates another error because it'll have an offset with the first line being a break. (If more info is needed, I will edit question)

Upvotes: 0

Views: 567

Answers (2)

Nigel Ren
Nigel Ren

Reputation: 57131

You could just add an extra condition to your code which checks the content read and skips the rest of the code in the loop if this is an empty line...

$result = fgets($fn);
if ( empty(trim($result)) ) {
    continue;
}

This will also cope with empty lines at any point in the file as well.

Upvotes: 0

KIKO Software
KIKO Software

Reputation: 16741

With almost the same code you can ignore the last line:

while($result = fgets($fn)) {
    if (!feof($fn)) {
        // process all lines except the last one
    }
}

fgets() will return false when no more lines can be read, so it acts like a kind of feof() as well.

Upvotes: 1

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