API Documentation http://msls.co/api-documentation/

MslsGetSet.php

$obj = new MslsGetSet;
$obj->tmp = 'test';

$val = $obj->get_arr();          // array( 'tmp' => 'test' ) == $val
$val = $obj->has_value( 'tmp' ); // true == $val
$val = $obj->is_empty();         // false == $val
echo $obj->tmp;                  // Output: test

$obj->reset();

$val = $obj->get_arr();          // array() == $val
$val = $obj->has_value( 'tmp' ); // false == $val
$val = $obj->is_empty();         // true == $val
echo $obj->tmp;                  // Output:

MslsJson.php

$obj = new MslsJson;
$obj->add( null, 'Test 3' )
	->add( '2', 'Test 2' )
	->add( 1, 'Test 1' );

// Output: [{"value":1,"label":"Test 1"},{"value":2,"label":"Test 2"},{"value":0,"label":"Test 3"}]
echo $obj;

MslsLanguageArray.php

$arr = array(
	'it'    => 1,
	'de_DE' => 2,
);
$obj = new MslsLanguageArray( $arr );

$val = $obj->get_val( 'it' );    // 1 == $val
$val = $obj->get_val( 'fr_FR' ); // 0 == $val
$val = $obj->get_arr();          // array( 'it' => 1, 'de_DE' => 2 ) == $val
$val = $obj->get_arr( 'de_DE' ); // array( 'it' => 1 ) == $val

MslsSqlCacher.php

// __CLASS__ and __METHOD__ are just for creating a unique footprint here
$cache = MslsSqlCacher::init( __CLASS__ )->set_params( __METHOD__ );

// With MslsSqlCacher you can use everything from WPDB as usual
$var = $cache->get_results(
	$cache->prepare(
		"SELECT ID FROM {$cache->posts} WHERE YEAR(post_date) = %d AND post_status = 'publish'",
		date( 'Y' )
	)
);