PHP code example of level-2 / dice

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

level-2 / dice example snippets

class A {
	public $b;

	public function __construct(B $b) {
		$this->b = $b;
	}
}

class B {

}

// Pre-4.0 code:
$dice->addRule('PDO', ['shared' => true]);

$db = $dice->create('PDO');

// 4.0 code:
$dice = $dice->addRule('PDO', ['shared' => true]);

$db = $dice->create('PDO');

$httpRequest = new HTTPRequest();
$httpRequest = $httpRequest->url('http://example.org')->method('POST')->postdata('foo=bar');

$dice = $dice->addRule('HTTPRequest',
                ['call' => [
                    ['url', ['http://example.org'], Dice::CHAIN_CALL],
                    ['method', ['POST'], Dice::CHAIN_CALL ],
                    ['postdata', ['foo=bar'], Dice::CHAIN_CALL]
                 ]
                ]
);

$dice = $dice->addRule('MyDatabase',
                [
                	'instanceOf' => 'DatabaseFactory',
                	'call' => [
                		['get', ['Database'], Dice::CHAIN_CALL]
                 ]
                ]
);

$database = $dice->create('MyDatabase');
//Equivalent of:

$factory = new DatabaseFactory();
$database = $factory->get('Database');

$dice->addRules([
	'\PDO' => [
		'shared' => true
	],
	'Framework\Router' => [
		'constructParams' => ['Foo', 'Bar']
	]
]);

$dice->addRules(json_decode(file_get_contents('rules.json')));

$dice->addRules(json_decode(file_get_contents('rules.json')));

$dice->addRule('ClassName', [
	'constructParams' => ['instance' => '$NamedPDOInstance']
]);

$dice->addRule('ClassName', [
	'constructParams' => [\Dice\Dice::INSTANCE => '$NamedPDOInstance']
]);

$rule = [];
$rule['shared'] = true;

$dice->addRule('MyClass', $rule);

$rule = [];
$rule['instanceOf'] = 'MyClass';
$rule['constructParams'] = ['Foo', 'Bar'];

$dice->addRule('$MyNamedInstance', $rule);

$rule = [];
$rule['shared'] = true;

$dice->addRule('MyClass', $rule);

$rule = [];
$rule['instanceOf'] = 'MyClass';
$rule['constructParams'] = ['Foo', 'Bar'];


//Prevent the named instance inheriting rules from the class named in `instanceOf`:
$rule['inherit'] = false;

$dice->addRule('$MyNamedInstance', $rule);

$rule->substitutions['A'] = function() {
	return new A;
};

$rule->call[] = ['someMethod', function() {
// '2' will be provided as the first argument when someMethod is called
return 2;
}];

$rule->constructParams[] = function() {
	//'abc' will be providedas the first constructor parameter
	return 'abc';
};

$rule->substitutions['A'] = ['instance' => function() {
	return new A;
}];

$rule->call[] = ['someMethod', ['instance' => function() {
// '2' will be provided as the first argument when someMethod is called
return 2;
}]]);

$rule->constructParams[] =  ['instance' => function() { {
	//'abc' will be providedas the first constructor parameter
	return 'abc';
}]);

	new Dice => new \Dice\Dice
	new DiceInstance => new \Dice\Instance
	new DiceRule => new \Dice\Rule