Александр Андропов

setInterval(function() { 
    $('#table').load(window.location.href + ' #table > .row' )
}, 60000)

$db = mysqli_connect($host, $db_name, $db_pass, $db_name);

if (!function_exists('db')) {
  function db () { global $db; return $db; }
}

if (!function_exists('db')) {
  function db () {
    static $db;
    if (!$db) $db = mysqli_connect($host, $db_name, $db_pass, $db_name);
    return $db;
  }
}

$add_destiny = mysqli_query(db(), "UPDATE `data` SET `column` = '$variable; WHERE `symbol` = '$db_symbol[$t]'");

function CheckDestiny ($variable,$type) use ($db) {
 // ...
}

function round_down($number, int $precision = 2)
{
    if  ($precision === 0) {
        return floor($number);
    }
    $fig = pow(10, $precision);
    return round(floor($number * $fig) / $fig, $precision);
}

$checker = [];
for($s = 0; $s < count($db_symbol); $s++)
    $checker[$s] = 0;

for ($x = 0; $x < 4; $x++){
  for($s = 0; $s < count($db_symbol); $s++) {
    // код...
    // ......
    // ......
    if ($checker[$s] == 0 && $amount < 7){
      $text = "text";
      message($text);
      $checker[$s] =1;
    }			
  }
}

<?php
$raw = '{
	"lastUpdateId":4409859389,
	"bids":[
		["2.13000000","6472.90000000"],
		["2.12900000","50106.20000000"],
		["2.12800000","63127.60000000"],
		["2.12700000","31495.40000000"],
		["2.12600000","41493.30000000"]
	],
	"asks":[
		["2.13100000","24755.90000000"],
		["2.13200000","86227.50000000"],
		["2.13300000","58302.20000000"],
		["2.13400000","61187.90000000"],
		["2.13500000","39494.50000000"]
	]
}';
$data = json_decode($raw, true);
$bids = array_column($data["bids"], 1);
$asks = array_column($data["asks"], 1);


echo "Max bid: " . max($bids) ,PHP_EOL;
echo "Max ask: " . max($asks) ,PHP_EOL;

<?php

function run($timerid, $params) {
    var_dump($timerid);
    var_dump($params);
}

// Каждые 10 секунд выполнять функцию run
Swoole\Timer::tick(10000, "run", ["param1", "param2"]);

// Enable the hook for MySQL: PDO/MySQLi
Co::set(['hook_flags' => SWOOLE_HOOK_TCP]);

// Setup a coroutine context
Co\run(function() {
    // Execute a query inside a coroutine
    go(function () {
        // Already setup the $pdo connection before...
        $statement = $pdo->prepare("SELECT * FROM users LIMIT :limit, :offset");
        $statement->execute(['limit' => $limit, 'offset' => $offset]); 
        $data = $statement->fetchAll();

        // Process $data result...
    });
});

<?php
$a = 717.83;
$b = 701.26;
	
$percent = (($a - $b) / $b) * 100;

echo $percent;

if ($percent >3 ) {
	echo ' Percent more then 3';
} else {
	echo ' Percent less or equal then 3';
}