Read file and fetch particular lines how to [closed] - php

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I have a problem I want to read from a file and use and fetch some parts of the file like below. This is whats inside the file but I want to fetch the names. This file is used by my server and if a player logs in the server then the list of names get bigger. But I have no clue how to do it.. and I really want to know how to do so.
I already tryed stuff myself by exploding the first characters but thats how far my knowledge reaches.
Already Big thanks for the one so kind to help me out.
Players online: NAME1, NAME2, NAME3, NAME4, NAME5, NAME6, ETC, ETC. Total: 4

Answer 1

You can try this out :
$line = 'layers online: NAME1, NAME2, NAME3, NAME4, NAME5, NAME6, ETC, ETC. Total: 4';
$pattern = '/:(.*)[,.]/';
preg_match($pattern, $line, $matches);
$names = explode(',', $matches[1]);
print_r($names);

Answer 2

You could search for the first occurance of the : character and the position of Total: using strpos() and then use substr() to remove these unneeded parts from the string. You could then split the string on each , character to get an array of names. Notice that the names will contain spaces so we could use array_walk() in conjunction with trim() to remove these:
// get the contents of your file
$data = file_get_contents('file.txt');
// get position of first ':' character
$pos1 = strpos($data, ':');
// get position of 'Total:'
$pos2 = strrpos($data, 'Total:');
// remove these parts using `substr()`
$data = substr($data, $pos1+1, ($pos2 - 1) - $pos1);
// split the string on each ',' character
$array = explode(",", $data);
// remove any whitespaces from the start and end
array_walk($array, function(&$value, $key) {
$value = trim($value);
});
// array now contains
Array
(
[0] => Admin Wouter
[1] => Krachtpatser
[2] => Dark Warrior
[3] => Anneleen.
)
To make sure you don't have any trailing '.' after a name you could modify the array_walk() callback like this:
array_walk($array, function(&$value, $key) {
// trim whitespaces
$value = trim($value);
// trim trailing '.' characters
$value = rtrim($value, '.');
});

Answer 3

$s = 'Players online: Admin Wouter, Krachtpatser, Dark Warrior, Anneleen. Total: 4';
// or read from the players file:
//$s = file_get_contents('path_to_players_file');
$s = str_replace('Players online: ', '', $s);
$stringPlayers = substr($s, 0, strrpos($s, '. Total:'));
echo $stringPlayers; // displays: Admin Wouter, Krachtpatser, Dark Warrior, Anneleen
// now get the player names in an array:
$arrayPlayers = explode(',', $stringPlayers);
foreach ($arrayPlayers as $k => $name) {
$arrayPlayers[$k] = trim($name);
}
echo '<pre>';
print_r($arrayPlayers);
echo '</pre>';
/* Displays:
Array
(
[0] => Admin Wouter
[1] => Krachtpatser
[2] => Dark Warrior
[3] => Anneleen
)
*/