我在从 JSON 获得的数组中有这样的数据
$page = file_get_contents("http://giswebcenter.mwa.co.th/mwa/ashx/Proxy.ashx");
$json_output = json_decode($page);
然后当我print_r（$json_output）时我有这样的数据
stdClass Object
(
[success] => 1
[total] => 850
[message] =>
[data] => Array
(
[0] => stdClass Object
(
[BRANCH] => 01
[ZONE] => 03
[BLOCK] => 04
[MATL] => ST
[LENGTH] => 516.492
)
[1] => stdClass Object
(
[BRANCH] => 01
[ZONE] => 03
[BLOCK] => 05
[MATL] => SCP
[LENGTH] => 19.177
)
[2] => stdClass Object
(
[BRANCH] => 01
[ZONE] => 03
[BLOCK] => 05
[MATL] => ST
[LENGTH] => 519.355
)
[3] => stdClass Object
(
[BRANCH] => 01
[ZONE] => 03
[BLOCK] => 06
[MATL] => SCP
[LENGTH] => 59.713
)
[4] => stdClass Object
(
[BRANCH] => 01
[ZONE] => 03
[BLOCK] => 06
[MATL] => ST
[LENGTH] => 476.866
)
[5] => stdClass Object
(
[BRANCH] => 01
[ZONE] => 04
[BLOCK] => 03
[MATL] => SCP
[LENGTH] => 64.875
)
[6] => stdClass Object
(
[BRANCH] => 01
[ZONE] => 04
[BLOCK] => 03
[MATL] => ST
[LENGTH] => 44.888
)
[7] => stdClass Object
(
[BRANCH] => 01
[ZONE] => 04
[BLOCK] => 05
[MATL] => SCP
[LENGTH] => 19.979
)
[8] => stdClass Object
(
[BRANCH] => 01
[ZONE] => 04
[BLOCK] => 05
[MATL] => ST
[LENGTH] => 28.591
)
[9] => stdClass Object
(
[BRANCH] => 01
[ZONE] => 04
[BLOCK] => 07
[MATL] => SCP
[LENGTH] => 38.967
)
)
)
我想将数组中的数据过滤为 ZONE='03'
我已经用 array_filter（） 尝试过这段代码，但请注意。
function filterZone($obj)
{
return $obj['data']->BRANCH == "01";
}
$BRANCH = array_filter($json_output, 'filterZone');
print_r($BRANCH);
谁能帮助或建议我这样做？
谢谢。
很简单。 您正在尝试array_filter不是真正数组的东西（或者至少是您尝试迭代的数组）。
你想运行更多类似的东西：
function filterZone($obj)
{
return $obj['ZONE'] == '03';
}
$BRANCH = array_filter($json_output->data, 'filterZone');
print_r($BRANCH);