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How to perform addition, deletion and modification operations under the ThinkPHP framework
How to perform addition, deletion and modification operations under the ThinkPHP framework
May 29, 2023 pm 06:28 PM
1. Add a record
To add a new record in ThinkPHP, you need to use a model and a controller. First, you need to define the table name and field information in the model. For example, after defining the table name and field information in the model, you can add a record to the student table
class StudentModel extends Model
{
protected $tableName = 'student'; //表名
protected $fields = array('id', 'name', 'age', 'sex'); //字段信息
}Then, create a Student object in the controller and specify the data to be added:
public function add()
{
$student = D('Student'); //實(shí)例化Student對(duì)象
$data = array(
'name' => 'Tom',
'age' => 18,
'sex' => '男'
); //要添加的數(shù)據(jù)
$student->add($data); //添加數(shù)據(jù)
} 2. Delete records
To delete a record in ThinkPHP, you need to use a model and a controller. In the controller, create an object named Student, and then delete the corresponding record by specifying the ID to be deleted
public function delete()
{
$id = 1; //要?jiǎng)h除的記錄的ID
$student = D('Student'); //實(shí)例化Student對(duì)象
$student->delete($id); //執(zhí)行刪除操作
}ThinkPHP's delete method will automatically delete data based on the primary key. If it needs to be deleted based on other conditions record, you can pass in an array as the second parameter in the delete method, for example:
public function delete()
{
$condition = array('age' => array('gt', 18)); //刪除滿足條件的記錄（年齡大于18歲的記錄）
$student = D('Student'); //實(shí)例化Student對(duì)象
$student->where($condition)->delete(); //執(zhí)行刪除操作
}3. Modify the record
Modify a record in ThinkPHP, Models and controllers are also required. First, create an object named Student, and then perform modification operations in the controller according to the ID of the record to be modified
public function update()
{
$id = 1; //要修改的記錄的ID
$student = D('Student'); //實(shí)例化Student對(duì)象
$data = array(
'name' => 'Jerry',
'age' => 20,
'sex' => '男'
); //要修改的數(shù)據(jù)
$student->where(array('id' => $id))->save($data); //執(zhí)行修改操作
}In the save method, you can choose whether to use the first parameter to specify the record to be modified. Recording conditions. If not specified, it will be modified based on the primary key.
The above is the detailed content of How to perform addition, deletion and modification operations under the ThinkPHP framework. For more information, please follow other related articles on the PHP Chinese website!
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