Online PHP editor | refs for 17cco

<?php class Request { public function __construct() { echo 'Request created', PHP_EOL; } } class DI { protected $shared = []; protected $definitions = []; public function __construct() {} public function set($name, $definition, $shared = false) { if($shared) { if(isset($shared[$name])) { throw new Exception("Definition '$name' is already set. Use DI::remove('$name') to remove it."); } $this->shared[$name] = $definition; } else { if(isset($definitions[$name])) { throw new Exception("Definition '$name' is already set. Use DI::remove('$name') to remove it."); } $this->definitions[$name] = $definition; } } public function getRaw($name) { if(!isset($this->definitions[$name])) { throw new Exception("Definition '$name' is not set. Use DI::set('$name', <definition>, <shared>) to set it."); } return $this->definitions[$name]; } public function get($name) { $definition = $this->getRaw($name); echo is_callable($definition) ? 'Callable def' : 'Non-calleable def'; echo class_exists($definition) ? 'Class' : 'non-class'; die; return $definition(); } } $di = new DI(); //Using an anonymous function $di->set('request', function(){ return new Request(); }); //Using an anonymous function $di->set('request', 'Request'); var_dump($di->get('request'));