PHP code example of halaei / helpers

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

halaei / helpers example snippets

use Halaei\Helpers\Supervisor\Supervisor;

app(Supervisor::class)->supervise(GetTelegramUpdates::class);

class GetTelegramUpdates
{
    function handle(Api $api)
    {
        $updates = $api->getUpdates(...);
        $this->queueUpdates($updates);
    }
    function queueUpdates($updates)
    {
        ...
    }
}

use Halaei\Helpers\Supervisor\QuitsOnSignals;

class SomeCommand
{
    use QuitsOnSignals;

    public function handle()
    {
        $this->listenToSignals();
        try {
            while(someConditionHolds()) {
                $this->process(); // a process that must be atomic (it shouldn't abort in the middle).
                $this->quitIfSignaled();
            }
        } finally {
            //Optional. Required if this process has other stuff to do after handle().
            $this->stopListeningToSignals();
        }
    }
}

use Halaei\Helpers\Objects\DataObject;

class Order extends DataObject
{
    public static function relations()
    {
        return [
            'items' => [Item::class], // items is a collection of objects of type Item.
            'destination' => Location::class, //delivered_to is an object of type Location
            'customer_mobile' => [Mobile::class, 'decode'], // customer mobile is a string that can be casted to a Mobile object via 'decode' static function.
        ];
    }
}

/**
 * @property string $item_code
 * @property int $quantity
 * @property float $unit_price
 * @property float $total_price
 */
class Item extends DataObject
{
}

/**
 * @property float $lat
 * @property float $lon
 */
class Location extends DataObject
{
}

class Mobile extends DataObject
{
    public static function decode($str)
    {
        if (preg_match('/^\+(\d+)-(\d+)$/', $str, $parts)) {
            return new self(['code' => $parts[1], 'number' => $parts[2]]);
        }
    }

    public function toRaw()
    {
        return '+'.$this->code.'-'.$this->number;
    }
}

$array = [
    'id' => 1234,
    'items' => [
        [
            'item_code' => '#100',
            'quantity' => 5,
            'unit_price' => 24,
            'total_price' => 120,
        ],
        [
            'item_code' => '#200',
            'quantity' => 1,
            'unit_price' => 80,
            'total_price' => 80,
        ],
    ],
    'final_price' => 200,
    'delivered_to' => [
        'lat' => 37.74123543,
        'lon' => 49.43254355,
    ],
    'customer_mobile' => '+98-9131231212',
];
$order = new Order($array);
echo get_class($order->delivered_to); // Location
echo $order->items[0]->quantity;// 5
var_dump($order->toArray()['mobile_number']); // ['code' => '+98', 'number' => '9131231212']
var_dump($order->toRaw()['mobile_number']); // +98-9131231212

class Order extends DataObject
{
    protected static $castables = [
        'items' => [Item::class],
        'destination' => Location::class,
        'customer_mobile' => [Mobile::class, 'decode'],
    ];
}

$newSensorData = [
    12 => ['value' => 32, 'observed_at' => '2016-06-30 12:30:01'],
    13 => ['value' => 33, 'observed_at' => '2016-06-30 12:30:05'],
    16 => ['value' => 30, 'observed_at' => '2016-06-30 12:30:05'],
];
$sensors = Sensor::whereIn('id', array_keys($newSensorData))->get();
foreach($sensors as $sensor) {
    //some calculations then save the new values
    $sensor->value = $newSensorData[$sensor->id]['value'];
    $sensor->observed_at = $newSensorData[$sensor->id]['observed_at'];
}
$sensors->update();

use \Halaei\Helpers\Redis\Lock;

$lock = app(Lock::class);

...
// 1. Wait for lock named 'critical_section'
while (! $lock->lock('critical_section', 0.1) {}
// 2. Do some critical job
//...
// 3. Release the lock
$lock->unlock('critical_section', 0.1);

use Halaei\Helpers\Process\Process;
use \Halaei\Helpers\Process\ProcessException;

$input = "Some input string";
$timout = 10; // seconds
$p = new Process(['some', 'command', 'with', 'args'], null, null, $input, $timout);
try {
    dump($p->mustRun()->stdOut);
} catch (ProcessException $e) {
    dump ($e->getCode(), $e->result->stdErr, $e->result->stdOut, $e->result->exitCode);
}

use Halaei\Helpers\Crypt\NumCrypt;

$crypt = new NumCrypt();
echo $crypt->encrypt(36); // 53k7hx
echo $crypt->decrypt('53k7hx'); // 36

use Halaei\Helpers\Crypt\NumCrypt;

$crypt = new NumCrypt('9876543210abcdef', 0 /*dont XOR*/);
echo $crypt->encrypt(16, 0 /*no padding*/); // 89
echo $crypt->decrypt('999989'); // 36