PHP automatically generates class attributes based on the table structure

$schema =$_GET['s'];
$table = $_GET['t'];
$conn = new PDO('mysql:host=localhost;dbname=information_schema', 'root', '', array(PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES 'UTF8''));
$rs = $conn->query("SELECT column_name,column_type,column_comment,data_type
FROM  information_schema.`COLUMNS` WHERE `TABLE_NAME` LIKE  '$table' and `TABLE_SCHEMA` like '$schema'");
$output = '';
foreach ($rs as $r) {
	$r['column_name'] = $r['column_name'];
 	// 下划线转驼峰
    // $r['column_name'] = lcfirst(implode('', array_map('ucfirst', explode('_', $r['column_name']))));
    $output .=<<n
/**
 * {$r['column_comment']}
 * @var {$r['data_type']} {$r['column_type']}
*/
public ${$r['column_name']}; n
EOF;
}
echo '' . $output . '';