限制循环在php中运行的次数

Question

我有一个foreach循环,我需要限制前10项然后突破它.

我怎么会这样做？

foreach ($butters->users->user as $user) {
    $id = $user->id;
    $name = $user->screen_name;
    $profimg = $user->profile_image_url;
    echo "things";    
} 

也希望得到详细的解释.

Answer 1

如果要使用foreach,可以添加其他变量来控制迭代次数.例如:

$i=0;
foreach ($butters->users->user as $user) {
    if($i==10) break;
    $id = $user->id;
    $name = $user->screen_name;
    $profimg = $user->profile_image_url;
    echo "things";  
    $i++;  
} 

Answer 2

您也可以使用LimitIterator.

例如

$users = new ArrayIterator(range(1, 100)); // 100 test records
foreach(new LimitIterator($users, 0, 10) as $u) {
  echo $u, "\n";
}