snowian / meekrodb

MeekroDB -- The Simple PHP MySQL Library

MeekroDB -- The Simple PHP MySQL Library

Learn more: http://www.meekro.com

MeekroDB is:

• A PHP MySQL library that lets you get more done with fewer lines of code, and makes SQL injection 100% impossible.
• Google's #1 search result for "php mysql library" for over 2 years, with thousands of deployments worldwide.
• A library with a perfect security track record. No bugs relating to security or SQL injection have ever been discovered.

Installation

When you're ready to get started, see the Quick Start Guide on our website.

Manual Setup

Include the db.class.php file into your project and set it up like this:

require_once 'db.class.php';
DB::$user = 'my_database_user';
DB::$password = 'my_database_password';
DB::$dbName = 'my_database_name';

Composer

Add this to your composer.json

{
  "require": {
    "sergeytsalkov/meekrodb": "*"
  }
}

Code Examples

Grab some rows from the database and print out a field from each row.

$accounts = DB::query("SELECT * FROM accounts WHERE type = %s AND age > %i", $type, 15);
foreach ($accounts as $account) {
  echo $account['username'] . "\n";
}

Insert a new row.

DB::insert('mytable', array(
  'name' => $name,
  'rank' => $rank,
  'location' => $location,
  'age' => $age,
  'intelligence' => $intelligence
));

Grab one row or field

$account = DB::queryFirstRow("SELECT * FROM accounts WHERE username=%s", 'Joe');
$number_accounts = DB::queryFirstField("SELECT COUNT(*) FROM accounts");

Use a list in a query

DB::query("SELECT * FROM tbl WHERE name IN %ls AND age NOT IN %li", array('John', 'Bob'), array(12, 15));

Nested Transactions

DB::$nested_transactions = true;
DB::startTransaction(); // outer transaction
// .. some queries..
$depth = DB::startTransaction(); // inner transaction
echo $depth . 'transactions are currently active'; // 2
 
// .. some queries..
DB::commit(); // commit inner transaction
// .. some queries..
DB::commit(); // commit outer transaction

Lots More - See: http://www.meekro.com/docs.php

How is MeekroDB better than PDO?

Optional Static Class Mode

Most web apps will only ever talk to one database. This means that passing $db objects to every function of your code just adds unnecessary clutter. The simplest approach is to use static methods such as DB::query(), and that's how MeekroDB works. Still, if you need database objects, MeekroDB can do that too.

Do more with fewer lines of code

The code below escapes your parameters for safety, runs the query, and grabs the first row of results. Try doing that in one line with PDO.

$account = DB::queryFirstRow("SELECT * FROM accounts WHERE username=%s", 'Joe');

Work with list parameters easily

Using MySQL's IN keyword should not be hard. MeekroDB smooths out the syntax for you, PDO does not.

$accounts = DB::query("SELECT * FROM accounts WHERE username IN %ls", array('Joe', 'Frank'));

Simple inserts

Using MySQL's INSERT should not be more complicated than passing in an associative array. MeekroDB also simplifies many related commands, including the useful and bizarre INSERT .. ON DUPLICATE UPDATE command. PDO does none of this.

DB::insert('accounts', array('username' => 'John', 'password' => 'whatever'));

Focus on the goal, not the task

Want to do INSERT yourself rather than relying on DB::insert()? It's dead simple. I don't even want to think about how many lines you'd need to pull this off in PDO.

// Insert 2 rows at once
  DB::query("INSERT INTO %b %lb VALUES %ll?", 'accounts',
  array('username', 'password', 'last_login_timestamp'),
  array(
    array('Joe', 'joes_password', new DateTime('yesterday')),
    array('Frank', 'franks_password', new DateTime('last Monday'))
  )
);

Nested transactions

MySQL's SAVEPOINT commands lets you create nested transactions, but only if you keep track of SAVEPOINT ids yourself. MeekroDB does this for you, so you can have nested transactions with no complexity or learning curve.

DB::$nested_transactions = true;
DB::startTransaction(); // outer transaction
// .. some queries..
$depth = DB::startTransaction(); // inner transaction
echo $depth . 'transactions are currently active'; // 2
 
// .. some queries..
DB::commit(); // commit inner transaction
// .. some queries..
DB::commit(); // commit outer transaction

Flexible error and success handlers

Set your own custom function run on errors, or on every query that succeeds. You can easily have separate error handling behavior for the dev and live versions of your application. Want to count up all your queries and their runtime? Just add a new success handler.

More about MeekroDB's design philosophy: http://www.meekro.com/beliefs.php

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A little shameless self-promotion!

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