Question

So, say you have a php post script that appends whatever you pass to it to a text file as a new line

Let say the file is called file.txt and looks like this:

11:45 Am
12:49 PM
Went to Lunch
3:25 PM

I wanna know, how can I write a php script that treats information as pairs of 3.
so in a for loop it would display

line1 | line2 | line3
line4

Notice that there is nothing past line4, so it stopped.

Answer 1

You can use (demo)

$chunksOfThree = array_chunk(file('/path/to/file', FILE_IGNORE_NEW_LINES), 3);
foreach ($chunksOfThree as $chunk) {
    echo implode(' | ', $chunk), PHP_EOL;
}

This will output the desired

11:45 Am | 12:49 PM | Went to Lunch
3:25 PM

See the Manual entries for

• file — Reads entire file into an array and
• array_chunk — Split an array into chunks
• implode — Join array elements with a string