为了解决根据关键词获取经纬度，找了半天的地图平台的api都没发现，只能退而求其次，找到了高德的周边搜索，从里面获取了一个能请求在一定范围内的关键词搜索

$content = file_get_contents('http://restapi.amap.com/v3/place/around?key=你的key&page=1&radius=5000&offset=10&keywords=%E5%9B%BD%E9%99%85%E8%8A%B1%E5%9B%AD%E5%9F%8E&location=118.387716%2C24.956172&s=rsv3&rf=h5&utm_source=litemap&callback=jsonp3');$content = ltrim($content, 'jsonp3(');$content = rtrim($content, ')');print_r(json_decode($content,true));

请求地址解析：

http://restapi.amap.com/v3/place/around?key= 高德平台的key&page=1&radius=5000   //中心点多远&offset=10&keywords= 关键词&location=118.387716,24.956172 //中心点&s=rsv3&rf=h5&utm_source=litemap&callback=jsonp3

结果分析：

Array(    [status] => 1    [count] => 12  //结果数量    [info] => OK   //返回结果    [infocode] => 10000    [suggestion] => Array        (            [keywords] => Array                (                )            [cities] => Array                (                )        )    [pois] => Array        (            [0] => Array                (                    [id] => B025303E8S                    [name] => 宏华国际花园城                    [type] => 商务住宅;住宅区;住宅小区                    [typecode] => 120302                    [biz_type] => Array                        (                        )                    [address] => 普莲路中段                    [location] => 118.400255,24.951351                    [tel] => Array                        (                        )                    [distance] => 1374                    [biz_ext] => Array                        (                        )                    [pname] => 福建省                    [cityname] => 泉州市                    [adname] => 南安市                    [importance] => Array                        (                        )                    [shopid] => Array                        (                        )                    [shopinfo] => 0                    [poiweight] => Array                        (                        )                )          ...        ))