php读取解析json文件

 <?php      $filename = "./js/recommendMenu.json";	 $json_string = file_get_contents($filename);	 echo print_r($json_string,true);            //打印文件的内容	 echo "<br>";	 	 $json2_string='{  "tsnpm":{    "name":"#特色牛排面#",	"score":"(4.7分)",	"price":"￥9.0",	"description":"较劲十足，微辣畅爽。"  },  "mnnrm":{    "name":"#:闽南牛肉面#",	"score":"(4.8分)",	"price":"￥8.5",	"description":"爽滑可口，回味无穷。"  },  "hxncm":{    "name":"#红烧牛杂面#",	"score":"(4.8分)",	"price":"￥8.0",	"description":"清香诱人，五味杂成！"  },  "gwcsgjf":{    "name":"#广味叉烧盖浇饭#",	"score":"(4.7分)",	"price":"￥8.5",	"description":"滋补，养胃、美味、有劲"  },   "xhscd":{    "name":"#西红柿炒蛋#",	"score":"(4.8分)",	"price":"￥2.0",	"description":"口味怡人，物美价廉！"  }}';	 $obj=json_decode($json2_string,true);	 if (!is_array($obj)) die('no successful');	 print_r($obj);     echo '<br>'.$obj['tsnpm']['name'];	?>