使用PHP读取.txt文件并输出/回显所选信息

Question

I have a file called priv.txt. In it reads:

9992,"D7Mc8DJUsN4xisbVRKDfNVYxspVXQ776EG","6JQ5cdFBBax7GBmBuK8j2vvBcNUAYJjvzBQzMMfen26SwpCsNxh"
9993,"DEbh8BmvCHqJgX6YFMjbqgewHHQKo4PJWT","6JTwvRVVTTit1PZRpKQDSCeFPG2knWmDAN7uRgeY2o58pUD8sRf"
9994,"DMJ5LhU7XBtZvmNHswthR5tnFR71FFDxFn","6JMr4n8xK3NCdjyMBrqPWCvPpbifjr6ofPi1jha79FYzPSgBTWf"

etc...

What I need to do, is output (via echo for example) in this format:

'{"D7Mc8DJUsN4xisbVRKDfNVYxspVXQ776EG":2,"DEbh8BmvCHqJgX6YFMjbqgewHHQKo4PJWT":2,"DMJ5LhU7XBtZvmNHswthR5tnFR71FFDxFn":2}'

The 2 should always stay the same and this only concerns the first column, the second column with strings beginning with "6" is irrelevant.

I have a php file which does:

<?php
$fh = fopen('priv.txt','r');
while ($line = fgets($fh)) {
// <... Do your work with the file ...>
echo($line);
}
fclose($fh);
?>

This just outputs the entire content of priv.txt.

Can anyone help?

Answer 1

A short solution:

$arr = array();
$lines = file("/path/file"); //put your txt file into an array called $lines

foreach ($lines as $line_num => $line) 
{
    $tmp = explode(",",$line); 
    array_push($arr,$tmp[1].":2");
}

$str = "{".implode(",",$arr)."}";
echo($str);