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library/DbBackup.php

@@ -0,0 +1,67 @@
+<?php
+declare(strict_types=1);
+
+namespace F\Back\Libraries;
+
+use Phalcon\Db\Adapter\Pdo\AbstractPdo;
+
+class DbBackup
+{
+    private $db;
+    private $backupFolderPath;
+
+    public function __construct(AbstractPdo $db, string $backupFolderPath)
+    {
+        $this->db = $db;
+        $this->backupFolderPath = $backupFolderPath;
+    }
+
+    public function backupDatabase()
+    {
+        $backupFilePath = $this->backupFolderPath . "/" . $this->db->getDescriptor()['dbname'] . "_" . date("Y-m-d_H-i-s") . ".sql";
+
+        $this->removePreviousBackupFiles();
+
+        $process = proc_open(
+            sprintf(
+                "mysqldump --host=%s --user=%s --password=%s %s",
+                escapeshellarg($this->db->getDescriptor()['host']),
+                escapeshellarg($this->db->getDescriptor()['username']),
+                escapeshellarg($this->db->getDescriptor()['password']),
+                escapeshellarg($this->db->getDescriptor()['dbname'])
+            ),
+            [
+                0 => ["pipe", "r"],  // stdin
+                1 => ["file", $backupFilePath, "w"],  // stdout
+                2 => ["pipe", "w"]   // stderr
+            ],
+            $pipes
+        );
+
+        if (!is_resource($process)) {
+            error_log("Failed to initiate mysqldump process.");
+            echo "Failed to initiate mysqldump process.";
+            return;
+        }
+
+        fclose($pipes[0]); // Close stdin
+
+        $errors = stream_get_contents($pipes[2]); // Read errors
+        fclose($pipes[2]); // Close stderr
+
+        $return_value = proc_close($process); // Close process
+
+        if ($return_value === 0) {
+            echo "Database backup created successfully: $backupFilePath";
+            error_log("Database backup created successfully: $backupFilePath");
+        } else {
+            echo "Errors occurred during database backup: $errors";
+            error_log("Errors occurred during database backup: $errors");
+        }
+    }
+
+    private function removePreviousBackupFiles()
+    {
+        array_map('unlink', glob($this->backupFolderPath . "/" . $this->db->getDescriptor()['dbname'] . "_*.sql"));
+    }
+}