怎麼死都打不開json的資料啊_(:з」∠)_

http://202.103.244.125/catst.php
如上，剛接觸PHP被這弄得好焦灼！json_decode出來的永遠都是null啊！！！網上的方法也都試了，求大神幫忙

回複討論(解決方案)

我就不相信你都試了

$url = 'http://202.103.244.125/catst.php';$s = file_get_contents($url);print_r(json_decode(substr($s, 3)));

Array(    [0] => stdClass Object        (            [menutype] => A            [groupx] => 0            [titleng] => 涼菜             [titlech] => Cold Dish        )    [1] => stdClass Object        (            [menutype] => A            [groupx] => 1            [titleng] => 湯 粥            [titlech] => Soup Porrdg        )    [2] => stdClass Object        (            [menutype] => A            [groupx] => 2            [titleng] => 燙菜            [titlech] => Hot food        )    [3] => stdClass Object        (            [menutype] => A            [groupx] => 3            [titleng] => 素菜            [titlech] => Veget -able        )    [4] => stdClass Object        (            [menutype] => A            [groupx] => 4            [titleng] => 主食            [titlech] => Main Food        )    [5] => stdClass Object        (            [menutype] => A            [groupx] => 5            [titleng] => 烤魚 啤酒魚            [titlech] => 烤魚 啤酒魚        )    [6] => stdClass Object        (            [menutype] => A            [groupx] => 6            [titleng] => 幹鍋 湯鍋            [titlech] => Gangou Hotpot        )    [7] => stdClass Object        (            [menutype] => A            [groupx] => 7            [titleng] => 鐵板 煲仔            [titlech] => Sheet Hotpot        )    [8] => stdClass Object        (            [menutype] => A            [groupx] => 8            [titleng] => 砂鍋            [titlech] => Sha Guo        )    [9] => stdClass Object        (            [menutype] => A            [groupx] => 9            [titleng] =>             [titlech] =>         )    [10] => stdClass Object        (            [menutype] => A            [groupx] => 10            [titleng] => 特別 推薦            [titlech] => Special Food        )    [11] => stdClass Object        (            [menutype] => A            [groupx] => 11            [titleng] => 十八釀            [titlech] => 十八釀        )    [12] => stdClass Object        (            [menutype] => A            [groupx] => 12            [titleng] => 飲料 茶            [titlech] => Drink Tea        )    [13] => stdClass Object        (            [menutype] => A            [groupx] => 13            [titleng] => 其他 自訂            [titlech] => 其他 自訂        )    [14] => stdClass Object        (            [menutype] => A            [groupx] => 14            [titleng] => 白酒 啤酒            [titlech] => Wine Beer        ))

弄個 BOM 頭害自己

http://202.103.244.125/catst.php
如上，剛接觸PHP被這弄得好焦灼！json_decode出來的永遠都是null啊！！！網上的方法也都試了，求大神幫忙

正解

我就不相信你都試了

$url = 'http://202.103.244.125/catst.php';$s = file_get_contents($url);print_r(json_decode(substr($s, 3)));

Array(    [0] => stdClass Object        (            [menutype] => A            [groupx] => 0            [titleng] => 涼菜             [titlech] => Cold Dish        )    [1] => stdClass Object        (            [menutype] => A            [groupx] => 1            [titleng] => 湯 粥            [titlech] => Soup Porrdg        )    [2] => stdClass Object        (            [menutype] => A            [groupx] => 2            [titleng] => 燙菜            [titlech] => Hot food        )    [3] => stdClass Object        (            [menutype] => A            [groupx] => 3            [titleng] => 素菜            [titlech] => Veget -able        )    [4] => stdClass Object        (            [menutype] => A            [groupx] => 4            [titleng] => 主食            [titlech] => Main Food        )    [5] => stdClass Object        (            [menutype] => A            [groupx] => 5            [titleng] => 烤魚 啤酒魚            [titlech] => 烤魚 啤酒魚        )    [6] => stdClass Object        (            [menutype] => A            [groupx] => 6            [titleng] => 幹鍋 湯鍋            [titlech] => Gangou Hotpot        )    [7] => stdClass Object        (            [menutype] => A            [groupx] => 7            [titleng] => 鐵板 煲仔            [titlech] => Sheet Hotpot        )    [8] => stdClass Object        (            [menutype] => A            [groupx] => 8            [titleng] => 砂鍋            [titlech] => Sha Guo        )    [9] => stdClass Object        (            [menutype] => A            [groupx] => 9            [titleng] =>             [titlech] =>         )    [10] => stdClass Object        (            [menutype] => A            [groupx] => 10            [titleng] => 特別 推薦            [titlech] => Special Food        )    [11] => stdClass Object        (            [menutype] => A            [groupx] => 11            [titleng] => 十八釀            [titlech] => 十八釀        )    [12] => stdClass Object        (            [menutype] => A            [groupx] => 12            [titleng] => 飲料 茶            [titlech] => Drink Tea        )    [13] => stdClass Object        (            [menutype] => A            [groupx] => 13            [titleng] => 其他 自訂            [titlech] => 其他 自訂        )    [14] => stdClass Object        (            [menutype] => A            [groupx] => 14            [titleng] => 白酒 啤酒            [titlech] => Wine Beer        ))

好像真的行了！！！
請問那個substr()的參數為什麼是3啊？如果處理其他的json檔案也是3嗎？還是需要做個判定呢？

utf-8 的BOM 頭，是三個字元，所以用 substr 跳過前 3 個字元
既然是要輸出 json 那麼程式檔案要儲存為 utf-8 無 BOM 格式

多謝版主！！

