mangocoin blockchain sync parse

<?php
set_time_limit(0);
$mangoes = array();
do_log_blockchain();
function do_log_blockchain(){
    global $mangoes;
    $path = getcwd(). "/mango_blockchain.txt";
    if(!file_exists($path)){
        file_put_contents($path, "");
    }
    $mangoes = file($path);
    $mangoes = array_map("strtolower", $mangoes);
    $mangoes = array_unique($mangoes);
    sort($mangoes, SORT_STRING);

    while(1) {
        printf("Parsing data... \n");
        // match user + balance /Sync\\:\s(.*?)\samount\s(\d+(.|,))+(\d)/
		// Sync\\:\s(.*?)[+-]?((\d+(\.\d*)?)|(\.\d+))\sMCZ/
        preg_match_all("/Sync\\:\s(.*?)[+-]?((\d+(\.\d*)?)|(\.\d+))\sMCZ/", strip_tags(file_get_contents('http://www.mangocoinz.com/blockchain')), $users);
        foreach ($users[0] as $usr) {
                if(!in_array($usr, $mangoes)){
                    printf("[!] %s\n", $usr);
                    write_out($usr, "mango_blockchain.txt");
                    array_push($mangoes,  print_r($usr, true));
                }
            
        }
        //print_r(array_unique($mangoes));
        $mangoes = array_unique($mangoes);
        printf("currently %s  users\n", sizeof($mangoes));
        foreach ($mangoes as $usr) {
            //send_coins($usr); 
        }
       sleep(60);
    }
}
function write_out($str, $path){
	$lin = file($path);
    $lin = array_map("strtolower", $lin);
    $lin = array_unique($lin);
    sort($lin, SORT_STRING);
    $mangoes = $lin;
    file_put_contents($path, implode('', $lin));
	if($h = fopen($path, 'a')){
		fwrite($h, "$str\n");
	}
	fclose($h);
}