├── README.md
├── backup.php
├── function.php
└── index.php
/README.md:
--------------------------------------------------------------------------------
1 | # Backup-MySQL-database-using-PHP
2 |
3 | Using PHP programming to create a database backup is simple. We'll learn how to backup a MySQL database using simple core PHP code.
4 | To get the table schema and data to be dumped into a file, I first get the database connection object. I get a list of all the table names from the
5 | database and put them in an array. The SQL script for the data/structure is then prepared by iterating through the array of database tables.
6 | This SQL script will be saved as a file and downloaded to the user's browser before being deleted from the target.
7 |
--------------------------------------------------------------------------------
/backup.php:
--------------------------------------------------------------------------------
1 |
--------------------------------------------------------------------------------
/function.php:
--------------------------------------------------------------------------------
1 | connect_error) {
7 | die("Connection failed: " . $conn->connect_error);
8 | }
9 |
10 | //get all of the tables
11 | if($tables == '*'){
12 | $tables = array();
13 | $sql = "SHOW TABLES";
14 | $query = $conn->query($sql);
15 | while($row = $query->fetch_row()){
16 | $tables[] = $row[0];
17 | }
18 | }
19 | else{
20 | $tables = is_array($tables) ? $tables : explode(',',$tables);
21 | }
22 |
23 | //getting table structures
24 | $outsql = '';
25 | foreach ($tables as $table) {
26 |
27 | // Prepare SQLscript for creating table structure
28 | $sql = "SHOW CREATE TABLE $table";
29 | $query = $conn->query($sql);
30 | $row = $query->fetch_row();
31 |
32 | $outsql .= "\n\n" . $row[1] . ";\n\n";
33 |
34 | $sql = "SELECT * FROM $table";
35 | $query = $conn->query($sql);
36 |
37 | $columnCount = $query->field_count;
38 |
39 | // Prepare SQLscript for dumping data for each table
40 | for ($i = 0; $i < $columnCount; $i ++) {
41 | while ($row = $query->fetch_row()) {
42 | $outsql .= "INSERT INTO $table VALUES(";
43 | for ($j = 0; $j < $columnCount; $j ++) {
44 | $row[$j] = $row[$j];
45 |
46 | if (isset($row[$j])) {
47 | $outsql .= '"' . $row[$j] . '"';
48 | } else {
49 | $outsql .= '""';
50 | }
51 | if ($j < ($columnCount - 1)) {
52 | $outsql .= ',';
53 | }
54 | }
55 | $outsql .= ");\n";
56 | }
57 | }
58 |
59 | $outsql .= "\n";
60 | }
61 |
62 | // Save the SQL script to a backup file
63 | $backup_file_name = $dbname . '_backup.sql';
64 | $fileHandler = fopen($backup_file_name, 'w+');
65 | fwrite($fileHandler, $outsql);
66 | fclose($fileHandler);
67 |
68 | // Download the SQL backup file to the browser
69 | header('Content-Description: File Transfer');
70 | header('Content-Type: application/octet-stream');
71 | header('Content-Disposition: attachment; filename=' . basename($backup_file_name));
72 | header('Content-Transfer-Encoding: binary');
73 | header('Expires: 0');
74 | header('Cache-Control: must-revalidate');
75 | header('Pragma: public');
76 | header('Content-Length: ' . filesize($backup_file_name));
77 | ob_clean();
78 | flush();
79 | readfile($backup_file_name);
80 | exec('rm ' . $backup_file_name);
81 |
82 | }
83 |
84 | ?>
85 |
--------------------------------------------------------------------------------
/index.php:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 | Backup MySQL Database using PHP
9 |
10 |
11 |
12 |
Backup MySQL Database using PHP
13 |
14 |
15 |
16 |
17 |
18 |
Fill Database Credential
19 |
20 |
47 |
48 |
49 |
50 |
51 |