什么是 di依赖注入?下面本篇文章就来带大家深入了解一下php中的di依赖注入,希望对大家有所帮助!
<?php class container { private $adapter; public function __construct() { $this->adapter = new adapter(); } }
<?php class container { private $adapter; public function __construct(adapter $adapter) { $this->adapter = $adapter; } }
<?php class container { public $instance = []; public function __set($name, $value) { $this->instance[$name] = $value; } } $container = new container(); $container->adapter = new adapter(); $container->autofelix = new autofelix();
<?php class container { public $instance = []; public function __set($name, $value) { $this->instance[$name] = $value; } } class adapter { public $name = '我是调度器'; } $container = new container(); $container->adapter = new adapter(); class autofelix { private $container; public function __construct(container $container) { $this->container = $container; } public function who($class) { return $this->container->instance[$class]->name; } } $autofelix = new autofelix($container); $who = $autofelix->who('adapter'); var_dump($who); //我是调度器
<?php $container = new container(); $container->adapter = new adapter(); //高阶优化 $container = new container(); $container->adapter = function () { return new adapter(); };
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