#### show_json() 输出json数据 示例 ~~~ show_json($_G); ~~~ 结果 ~~~ {"config":{"DEFAULT_PAGE":10,"HTTP":"http","MASTER":"app","ADDONS":"addons","TPL":"tpl","TPL_DEFAULT":"bootstrap","TPL_STATUS":false,"ATTACHMENT":"attachment"},"database":{"database_type":"mysql","database_name":"calfbaby","server":"127.0.0.1","username":"root","password":"123456","charset":"utf8","port":"3306","prefix":"calf_"},"APP_URL":"http:\/\/test.jkb.com\/index.php","APP":"http:\/\/test.jkb.com\/","ATTACHMENT_ROOT":"http:\/\/test.jkb.com\/attachment"} ~~~