php 一旦满足条件，如何跳出 foreach？
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How to break out of a foreach once a condition is met?
提问by Edward
I have a situation where when dealing with an object I generally use a foreach to loop through it like this:
我有一种情况，在处理对象时，我通常使用 foreach 像这样循环遍历它：
foreach ($main_object as $key=>$small_object) {
...
}
However, I need to put a conditional in there like this:
但是，我需要在其中放置一个条件，如下所示：
foreach ($main_object as $key=>$small_object) {
if ($small_object->NAME == "whatever") {
// We found what we need, now see if he right time.
if ($small_object->TIME == $sought_time) {
// We have what we need, but how can we exit this foreach loop?
}
}
What is the elegant way to do this? It seems wasteful to have it keep looping through if it's found a match. Or is there another approach to do this that is better? Possibly using for instead of foreach?
这样做的优雅方法是什么？如果找到匹配项，让它继续循环似乎很浪费。或者是否有另一种更好的方法来做到这一点？可能使用 for 而不是 foreach？
回答by ciruvan
From PHP documentation:
来自 PHP 文档：
breakends execution of the current for, foreach, while, do-while or switch structure.
break结束当前 for、foreach、while、do-while 或 switch 结构的执行。
So yes, you can use it to get out of the foreach loop.
所以是的，您可以使用它来退出 foreach 循环。
回答by Code L?ver
Use the breakstatement inside the if condition:
使用breakif 条件中的语句：
if ($small_object->TIME == $sought_time) {
break;
}
breakstatement will break out of the loop.
break语句将跳出循环。
