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<?php class Request { public function __construct() { echo 'Request created'; } } 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); return $definition(); } } $di = new DI(); //Using an anonymous function $di->set('request', function(){ return new Request(); }); var_dump($di->get('request'));
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Request createdobject(Request)#3 (0) { }
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/Fo6Gu on line 10
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/Fo6Gu on line 10
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Fo6Gu on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/Fo6Gu on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/Fo6Gu on line 4
Process exited with code 255.

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