尝试在 foreach 中使用 array_merge_recursive 时遇到问题。 我想做的是抓取一个网站,然后将所有数据放入多维数组中。这是我的代码:
原始数组
$apiarray = array(
"response" => array(
"badges" => array(
array()
)
)
);
要合并的数组
foreach($recentbadges as $badge)
{
++$bcount;
$pbadge = $badge->find('div.profile_badges_badge', 0);
$pbadge = strip_tags($badge, '<div><br />');
preg_match('@data-community-tooltip="([^"]+)"@', $pbadge, $matchg);
$pbadge = array_pop($matchg);
$pbadge = array(
"response" => array(
"badges" => array(
array(
"badge_title" => "{$pbadge}"
)
)
)
);
$apiarray = array_merge_recursive($arrayfull, $pbadge);
}
打印数组的输出
Array
(
[response] => Array
(
[badges] => Array
(
[0] => Array //Why does this data appear?
(
)
[1] => Array
(
[badge_title] => Heraldbr Level 2 Skullgirls Badge
)
[2] => Array
(
[badge_title] => Gold Cubebr Level 5 GooCubelets Badge
)
[3] => Array
(
[badge_title] => Four Color Acesbr Level 5 Why So Evil 2: Dystopia Badge
)
[4] => Array
(
[badge_title] => Teleport Controllerbr Level 3 Heaven Island Life Badge
)
)
)
)
为什么多维数组中的第一个数组返回
[0] => Array //Why does this data appear?
(
)
由于 foreach 会产生 4 个结果,因此只会出现 4 个数组元素
最佳答案
空的第一个结果来自您的定义:
$apiarray = array(
"response" => array(
"badges" => array(
array() // <- remove this guy
)
)
);
关于PHP数组合并递归问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38559049/