CODEWITHSUNDEEP
phparraysfilesorting
john
john

Reputation: 1273

how to read all second lines from txt files with php and put them in 1 variable

I have a lot of .txt files which have several lines of content in it. To grab all the txt files in the folder messages, i use this code:

// read all files in messages folder
$dir = 'messages/';
if ($dh = opendir($dir)) {
    while(($file = readdir($dh))!== false){
        if ($file != "." && $file != "..") { // This line strips out . & ..     
            $files_list[] = $file;                  
        }

    }
}

To get the second line form a txt file, i know i can use this:

$lines = file($file);
$secondline = $lines[1];

But how can i grab all the second lines from all the txt files and put it in a variable, so that i can sort it? Something like. rsort($all_secondlines_allfiles);

Upvotes: 0

Views: 55

Answers (1)

Syed Hussim
Syed Hussim

Reputation: 760

Put the second line into a global array then use r/sort() function to sort it as needed.

$globalArray = [];

$dir = 'messages/';
if ($dh = opendir($dir)) {
    while(($file = readdir($dh))!== false){
        if ($file != "." && $file != "..") { // This line strips out . & .. 
            $lines = file($dir.$file);
            $secondline = $lines[1];    
            $globalArray[] = $secondline;                 
        }
    }
sort($globalArray);
print_R($globalArray);
}

Upvotes: 2

Related Questions