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PDO Instance

Best instance PDO class for rapidly creating small project.

Setup Database

Edit the file in Db.php with real data, for example :

    protected static $_instance = null;
    protected static $username = "root";
    protected static $password = "";
    protected static $dsn = "mysql:host=localhost;dbname=test";

Query Programming

This class have multiple method like "find, where, limit, orderBy, statement, one, all, save, delete, deleteAll". Please see the example using this class. Please ensure you have include 'Query.php'

select one

This following code will get single row using one() method.

$query = new Query;
$query->find("my_table")
        ->where(['status' => 1])
        ->orderBy("id desc");

//print result single row using one()
$one = $query->one();
echo "<pre>";print_r($one);

select all with limit

This following code will get many row using all method.

$query = new Query;
$query->find("user")
        ->where(['status' => 1])
        ->limit(2)
        ->orderBy("id desc");

$result = $query->all();

//print result
echo "<pre>";print_r($result);

select and filter where

This following code will get many row using all() method.

$qr = new Query();
$models = $qr->find("user")
        ->where(['status'=>1])
        ->andFilterWhere(['LIKE', 'name', '%Andy%'])
        ->all();
if ($models)
    foreach ($models as $model) {
        echo 'name is :' . $model->name . ' and username is ' . $model->username . ' <p>';
    }

// Search AND IN array
$qr = new Query();
$models = $qr->find("user")
        ->where(['status' => 1])
        ->andFilterWhere(['IN', 'id', [1, 2, 3, 4, 5, 6, 7, 9, 10, 11]])
        ->all()
        ;

// Search OR IN array
$qr = new Query();
$models = $qr->find("user")
        ->where(['status' => 1])
        //->andFilterWhere(['IN', 'id', [1, 2, 3, 4, 5, 6, 7, 9, 10, 11]])
        ->orFilterWhere(['LIKE', 'name', '%Andy%'])
        ->all()
;

insert data

This following example how to insert data

$query = new Query;
$query->find('user');
$query->name = "Andy Laser";
$query->email = '[email protected]';
$query->username = "laser";
$query->save();

echo "<pre>";print_r($query);

echo 'my id is:' . $query->id . ' and my name is ' . $query->name. ' and table name is ' . $query->table;

update data

This following example how to update data and using where and one() method

$user = new Query();
$user->find('user')->where(['id' => 12])->one();

$user->username = 'testing1123232';
$user->save();

echo 'my id is:' . $query->id . ' and my name is ' . $query->name . ' and table name is ' . $query->table;

delete data

This following example how to delete using delete() or deleteAll(). Callback value 1 for success or 0 not success

//delete one
//return 1 or 0

$delete = new Query();
$delete->find("user")->where(['status' => 1])->delete();

// or you can do like this following

$users = new Query();
$users->find('user')->where(['username' => 'laser])->one();

$users->delete();


//delete all
//return 1 or 0

$delete = new Query();
$delete->find("user")->where(['status' => 1])->deleteAll();

// or you can do like this following

$users = new Query();
$users->find('user')->where(['username' => 'laser])->all();

$users->deleteAll();

looping

Looping example,

// looping
if ($result)
    foreach ($result as $res) {
        echo ' id :' . $res->id . ' username is :' . $res->username;
    }