想知道在 foreach 循环中获得第一次迭代的好方法是什么.我想在第一次迭代中做一些不同的事情.
Wondering what would be a good method to get the first iteration on a foreach loop. I want to do something different on the first iteration.
在这些情况下,有条件是我们最好的选择吗?
Is a conditional our best option on these cases?
是的,如果您无法以不同的方式(正常的 for 循环)遍历对象,在这种情况下只需使用条件:>
Yes, if you are not able to go through the object in a different way (a normal for loop), just use a conditional in this case:
$first = true;
foreach ( $obj as $value )
{
if ( $first )
{
// do something
$first = false;
}
else
{
// do something
}
// do something
}
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