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File: README.md
Role: Auxiliary data
Content type: text/markdown
Description: Auxiliary data
Class: DAO for PHP
Access data objects in a database using PDO
Author: By
Last change: v1.0
Date: 3 years ago
Size: 1,500 bytes
 

Contents

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Dao-for-PHP v1.0

Abstract class DAO for PDO/MySQL

Class heritage Example

class User extends DAO
{
    public function get_by_id(int $id)
    {
        $sql = 'SELECT * FROM users WHERE id = :id';
        $this->executeGet($sql, ['id' => $id]);
    }

    public function create_user(string $name)
    {
        $sql = 'INSERT INTO users (name) VALUES (:name)';
        $this->execute($sql, ['name' => $name]);

        $this->message('User created successfully!');
    }
}

Get user by id example

$user = new User();

$user->get_by_id(1);

if ($user->result['error']) {
    $error = $user->result['data'];
} else {
    $user_obtained = $user->result['data'][0];
}

Create user example

$user = new User();

$user->create_user('John Doe');

$response = $user->result['data'];

Properties:

public array $result

  • _$this->result['error']_ - Boolean
  • _$this->result['data']_ - Array|String from executeGet() method - String from execute() method

protected PDO $con - PDO MySQL connection

protected PDO $query - PDO prepared statement for execution

Methods:

public void execute(string $query, array $params)

public void executeGet(string $query, array $params)

  • _string $query_ - SQL sentence with alias
  • _array $params_ - Assoc array with alias as key

public void message(string $message)

  • _string $message_ - Create custom response message after execute() method

public void close()

  • Close MySQL connection
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