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app/Alias/Connection.php

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+<?php
+namespace App\Alias;
+
+use PDO;
+use PDOException;
+
+class Connection
+{
+    public function __construct(
+        protected string $host,
+        protected string $database,
+        protected string $username,
+        protected string $password,
+        protected ?int $port = null,
+        protected int $retries = 5
+    ) {}
+
+    protected PDO $connection;
+    public function connect(): PDO
+    {
+        if (!isset($this->connection)) {
+            $r = 0;
+            $exception = null;
+            while ($r < $this->retries) {
+                try {
+                    $dsn = $this->getDsn();
+                    $this->connection = new PDO($dsn, $this->username, $this->password);
+                    return $this->connection;
+                } catch (PDOException $e) {
+                    if ($exception !== null) {
+                        $e = new PDOException($e->getMessage(), $e->getCode(), $exception);
+                    }
+                    $exception = $e;
+                    usleep(500);
+                }
+                $r ++;
+            }
+            throw $exception;
+        }
+        return $this->connection;
+    }
+    protected function getDsn(): string
+    {
+        $dsn = "mysql:host={$this->host};dbname={$this->database}";
+        if (isset($this->port)) {
+            $dsn .= ";port={$this->port}";
+        }
+        return $dsn;
+    }
+}