php 循环遍历对象数组
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loop through array of objects
提问by Mitchell Bray
I Have an array called $pages content is as follows:
我有一个名为 $pages 的数组内容如下：
Array
(
[01-about-us] => Page Object
(
[_uri] => about-us
[_menuItem] => 01
[_visable] => 1
)
[02-contact] => Page Object
(
[_uri] => contact
[_menuItem] => 02
[_visable] => 1
)
[_sitemap] => Page Object
(
[_uri] => sitemap
[_menuItem] =>
[_visable] =>
)
[home] => Page Object
(
[_uri] => home
[_menuItem] =>
[_visable] => 1
)
)
is there an easy way to loop through and get page objects by there properties ie:
有没有一种简单的方法来循环并通过那里的属性获取页面对象，即：
<?php foreach($pages->_visible() AS $p): ?>
<li> page </li>
<?php endforeach ?>
回答by Bart Friederichs
No. You will have to use an if:
不，您必须使用if：
foreach ($pages as $page) {
if ($page->_visible == 1) {
echo "<li>page</li>";
}
}
(Note also you misspelt visiblein the array, perhaps a typo?)
（还要注意你visible在数组中拼错了，也许是拼写错误？）
回答by Andris
Or you can utilize PHP's array_filterfunction:
或者你可以利用 PHP 的array_filter功能：
$pagesVisible = array_filter($pages, function($page) {
return (bool) $page->_visible;
});
foreach ($pagesVisible as $key => $page) {
print '<li>' . $key . '</li>';
}
Or shorthand it to:
或将其简写为：
$filter = function($page) {
return (bool) $page->_visible;
};
foreach (array_filter($pages, $filter) as $key => $page) {
print '<li>' . $key . '</li>';
}
回答by PhearOfRayne
You just need to loop through the pages array and inside the loop access the object properties like:
您只需要遍历 pages 数组并在循环内访问对象属性，例如：
<?php foreach($pages as $k => $p): ?>
<?php if ($p->_visable === 1): ?>
<li><?php echo $k; ?></li>
<?php endif; ?>
<?php endforeach; ?>
Please note that visableis misspelled but thats how it is in your question
请注意，visable拼写错误，但这就是您的问题
