您可以将代码转换为可重用的函数。例如。
function updateDB($tableName, $flightNum, $from, $STADate) {
include_once 'include/DatabaseConnector.php';
$query = 'UPDATE ' . $tableName
SET frm="'.$from.'",STADate="'.$STADate.'"
WHERE flightNum="'.$flightNum.'"';
$execute = DatabaseConnector::ExecuteQuery($query);
return $execute;
}
并使用它
if(isset($_POST['flightNum']) {
$update = updateDB('flightschedule', $_POST['flightNum'], $_POST['from'], $_POST['STADate']);
echo $update;
}
更新:
我想将一组列名发送到函数“updateDB”。假设这些是 UPDATE 语句的 SET 和 WHERE 部分的列名。然后我可以使用 FOREACH,但我需要一些例子。
这就是你可以做到的。
function updateDB($tableName, $columns, $where) {
//do some validation here to check if proper data is being passed like
if(!isarray($columns)) {
throw new Exception('argument two $columns should be an associative array');
}
include_once 'include/DatabaseConnector.php';
$query = 'UPDATE ' . $tableName;
foreach($columns as $column => $data) {
$query .= ' SET ' . $column . ' = ' . $data . ', ';
}
//remove last comma from the update query string
$query = substr($query, 0, -1);
$query .= ' WHERE ' . $where['column'] . ' = ' . $where['value'];
$execute = DatabaseConnector::ExecuteQuery($query);
return $execute;
}
并使用它。
if(isset($_POST['flightNum']) {
$columns = array(
'frm' => $_POST['frm'],
'STADate' => $_POST['STADate']
);
$where = array(
'column'=> 'flightNum',
'value' => $_POST['flightNum']
);
$update = updateDB('flightschedule', $columns, $where);
echo $update;
}