我知道PHP，但在PHP中使用OO并不多。在Joomla工作，我可以看到使用OO和MVC的好处，以及它出现的方式。但是我经常遇到这样的情况：我不知道这对于OO是否是一个好的候选人。以下是作为print_r的JSON字符串输出的列车时刻表示例。
为了在不使用PHP的OO的情况下从日程表中提取各种列车站点，我最终会使用嵌套的“foreach”来到达火车站的出发和到达时间。
在环境OO中将它作为对象处理可能会更好吗？如果没有所有嵌套的'foreach'语句来创建更优雅的编程环境，是否可以更轻松地获取数据？或者切换到OO不会进一步简化此任务和PHP代码的可读性吗？
如果您认为OO是可行的方法，那么您可以使用下面的示例举例说明PHP的外观，以改善最有用的环境。谢谢！
stdClass Object
(
[ITEM] => Array
(
[0] => stdClass Object
(
[ITEM_INDEX] => 0
[SCHED_DEP_DATE] => 10:46:00 06/13/2013
[DESTINATION] => New York
[TRACK] => 2
[LINE] => AMTK
[TRAIN_ID] => A98
[STATUS] => ARRIVED
[BACKCOLOR] => yellow
[FORECOLOR] => black
[SHADOWCOLOR] => yellow
[GPSLATITUDE] => 40.7347
[GPSLONGITUDE] => -74.1644
[GPSTIME] => 6/13/2013 12:06:05 PM
[TRAIN_LINE] => Northeast Corridor Line
[STATION_POSITION] => 1
[LINEABBREVIATION] => AMTK
[INLINEMSG] =>
[STOPS] => stdClass Object
(
[STOP] => stdClass Object
(
[NAME] => New York Penn Station
[TIME] => 6/13/2013 12:26:11 PM
[DROPOFF] => Discharge Only
)
)
)
[1] => stdClass Object
(
[ITEM_INDEX] => 1
[SCHED_DEP_DATE] => 11:57:00 06/13/2013
[DESTINATION] => New York
[TRACK] => 1
[LINE] => AMTK
[TRAIN_ID] => A644
[STATUS] => in 2 Min
[BACKCOLOR] => yellow
[FORECOLOR] => black
[SHADOWCOLOR] => yellow
[GPSLATITUDE] =>
[GPSLONGITUDE] =>
[GPSTIME] => 6/13/2013 12:08:15 PM
[TRAIN_LINE] => Northeast Corridor Line
[STATION_POSITION] => 1
[LINEABBREVIATION] => AMTK
[INLINEMSG] => quiet car is in the rear.........thank you
[STOPS] => stdClass Object
(
[STOP] => stdClass Object
(
[NAME] => New York Penn Station
[TIME] => 6/13/2013 12:28:33 PM
)
)
)
[2] => stdClass Object
(
[ITEM_INDEX] => 2
[SCHED_DEP_DATE] => 12:09:00 06/13/2013
[DESTINATION] => Raritan
[TRACK] => 5
[LINE] => RARV
[TRAIN_ID] => 5423
[STATUS] => ALL ABOARD
[BACKCOLOR] => Orange
[FORECOLOR] => white
[SHADOWCOLOR] => black
[GPSLATITUDE] =>
[GPSLONGITUDE] =>
[GPSTIME] => 6/13/2013 11:23:37 AM
[TRAIN_LINE] => Raritan Valley Line
[STATION_POSITION] => 0
[LINEABBREVIATION] => RARV
[INLINEMSG] =>
[STOPS] => stdClass Object
(
[STOP] => Array
(
[0] => stdClass Object
(
[NAME] => Union
[TIME] => 6/13/2013 12:18:00 PM
)
[1] => stdClass Object
(
[NAME] => Roselle Park
[TIME] => 6/13/2013 12:21:30 PM
)
[2] => stdClass Object
(
[NAME] => Cranford
[TIME] => 6/13/2013 12:26:15 PM
)
[3] => stdClass Object
(
[NAME] => Westfield
[TIME] => 6/13/2013 12:30:15 PM
)
[4] => stdClass Object
(
[NAME] => Fanwood
[TIME] => 6/13/2013 12:34:30 PM
)
[5] => stdClass Object
(
[NAME] => Netherwood
[TIME] => 6/13/2013 12:37:45 PM
)
[6] => stdClass Object
(
[NAME] => Plainfield
[TIME] => 6/13/2013 12:40:45 PM
)
[7] => stdClass Object
(
[NAME] => Dunellen
[TIME] => 6/13/2013 12:45:30 PM
)
[8] => stdClass Object
(
[NAME] => Bound Brook
[TIME] => 6/13/2013 12:52:00 PM
)
[9] => stdClass Object
(
[NAME] => Bridgewater
[TIME] => 6/13/2013 12:54:45 PM
)
[10] => stdClass Object
(
[NAME] => Somerville
[TIME] => 6/13/2013 12:59:30 PM
)
[11] => stdClass Object
(
[NAME] => Raritan
[TIME] => 6/13/2013 1:10:00 PM
)
)
)
)
[3] => stdClass Object
(
[ITEM_INDEX] => 3
[SCHED_DEP_DATE] => 12:12:00 06/13/2013
[DESTINATION] => NY Penn -SEC
[TRACK] => 1
[LINE] => NJCL
[TRAIN_ID] => 3240
[STATUS] =>
[BACKCOLOR] => black
[FORECOLOR] => white
[SHADOWCOLOR] =>
[GPSLATITUDE] =>
[GPSLONGITUDE] =>
[GPSTIME] => 6/13/2013 11:47:35 AM
[TRAIN_LINE] => North Jersey Coast Line
[STATION_POSITION] => 1
[LINEABBREVIATION] => NJCL
[INLINEMSG] =>
[STOPS] => stdClass Object
(
[STOP] => Array
(
[0] => stdClass Object
(
[NAME] => Secaucus Upper Lvl
[TIME] => 6/13/2013 12:19:30 PM
)
[1] => stdClass Object
(
[NAME] => New York Penn Station
[TIME] => 6/13/2013 12:49:00 PM
)
)
)
)
[4] => stdClass Object
... etc.
我正在尝试避免或找到更好的方法，因此PHP代码看起来不像这样：
foreach ($destinations->ITEM as $key=>$destination) {
echo $destination->DESTINATION . "\t\t";
echo $destination->SCHED_DEP_DATE . "\n";
foreach ($destination->STOPS as $key_stops=>$value_stops) {
foreach ($value_stops as $key_stop=>$value_stop) {
echo $value_stop->NAME . "\t";
echo $value_stop->TIME . "\n";
}
}
echo "\n";
}
更直接的东西，也许是这样的： $ arrival_time = $ train_destination（$ station-＆gt; $ last_stop）;
因此，建议的功能可能是更好的方法。
答案 0 :(得分：1)
OOP非常适合用行为绑定数据。到目前为止，您提到的只是需要访问数据。除非您需要该功能，否则我不会通过制作对象来夸大您的数据行为。为了避免代码中出现嵌套循环，我会移动逻辑来查询数据到数据库中（假设你有一个）;数据库比命令式代码更好，无论是否为OOP。
答案 1 :(得分：0)
考虑将代码分解为：
function printDestinationStop($stop) {
echo $stop->NAME . "\t";
echo $stop->TIME . "\n";
}
function printDestination($destination) {
echo $destination->DESTINATION . "\t\t";
echo $destination->SCHED_DEP_DATE . "\n";
foreach ($destination->STOPS as $stop) {
printDestinationStop($stop);
}
}
function printDestinations($destinations) {
foreach ($destinations->ITEM as $destination) {
printDestination($destination);
echo "\n";
}
}
这也使您可以打印任何特定的停靠点或目的地，而无需打印所有目的地，如您给定的嵌套循环，因为打印特定元素的代码与主循环分开。
在这种情况下，虽然可能有点过分，但是更好的方法是提供打印的回调函数，以便数组/对象的遍历始终相同，但是根据您的位置，可以使用多种输出格式。 ;重新打印它（有点像visitor pattern）。