Query/apiDocumentation/files/src/Drivers/Mysql/Util.php.txt

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<?php declare(strict_types=1);
/**
* Query
*
* SQL Query Builder / Database Abstraction Layer
*
* PHP version 8.1
*
* @package Query
* @author Timothy J. Warren <tim@timshome.page>
* @copyright 2012 - 2023 Timothy J. Warren
* @license http://www.opensource.org/licenses/mit-license.html MIT License
* @link https://git.timshomepage.net/aviat/Query
* @version 4.0.0
*/
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namespace Query\Drivers\Mysql;
use PDO;
use Query\Drivers\AbstractUtil;
/**
* MySQL-specific backup, import and creation methods
*/
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class Util extends AbstractUtil
{
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/**
* Create an SQL backup file for the current database's structure
*/
public function backupStructure(): string
{
$string = [];
// Get databases
$driver = $this->getDriver();
$dbs = $driver->getDbs();
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foreach ($dbs as &$d)
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{
// Skip built-in dbs
// @codeCoverageIgnoreStart
if ($d === 'mysql')
{
continue;
}
// @codeCoverageIgnoreEnd
// Get the list of tables
$tables = $driver->driverQuery("SHOW TABLES FROM `{$d}`", TRUE);
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foreach ($tables as $table)
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{
$array = $driver->driverQuery("SHOW CREATE TABLE `{$d}`.`{$table}`", FALSE);
$row = current($array);
if ( ! isset($row['Create Table']))
{
continue;
}
$string[] = $row['Create Table'];
}
}
return implode("\n\n", $string);
}
/**
* Create an SQL backup file for the current database's data
*/
public function backupData(array $exclude=[]): string
{
$driver = $this->getDriver();
$tables = $driver->getTables();
// Filter out the tables you don't want
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if ( ! empty($exclude))
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{
$tables = array_diff($tables, $exclude);
}
$outputSql = '';
// Select the rows from each Table
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foreach ($tables as $t)
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{
$sql = "SELECT * FROM `{$t}`";
$res = $driver->query($sql);
$rows = $res->fetchAll(PDO::FETCH_ASSOC);
// Skip empty tables
if ((is_countable($rows) ? count($rows) : 0) < 1)
{
continue;
}
// Nab the column names by getting the keys of the first row
$columns = @array_keys($rows[0]);
$insertRows = [];
// Create the insert statements
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foreach ($rows as $row)
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{
$row = array_values($row);
// Quote strings
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$row = array_map(static fn ($r) => is_string($r) ? $driver->quote($r) : $r, $row);
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$row = array_map('trim', $row);
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$rowString = 'INSERT INTO `' . trim((string) $t) . '` (`' . implode('`,`', $columns) . '`) VALUES (' . implode(',', $row) . ');';
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$row = NULL;
$insertRows[] = $rowString;
}
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$outputSql .= "\n\n" . implode("\n", $insertRows) . "\n";
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}
return $outputSql;
}
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}