我一直在寻找很多答案,但没有一个能为我工作.
这是分配给我的$quantities数组的数据:
Array(
[10] => Array([25.00] => 1)
[9] => Array([30.00] => 3)
[8] => Array([30.00] => 4)
[12] => Array([35.00] => )
[1] => Array([30.00] => )
[2] => Array([30.00] => )
)
我正在寻找一种方法来删除具有空值的子数组,[12] [1]并[2]保留其他所有内容.
期望的结果:
Array(
[10] => Array([25.00] => 1)
[9] => Array([30.00] => 3)
[8] => Array([30.00] => 4)
)
我在官方php文档上尝试了很多功能,但没有一个能够工作.
我用过这个:
function array_filter_recursive($array, $callback = null) {
foreach ($array as $key => & $value) {
if (is_array($value)) {
$value …我正在编写像Facebook一样的刮刀来从给定的URL获取信息.我只是完成基本功能的一步.到目前为止的问题是删除无用的图像.例如,当我运行一些随机网址时,我得到所有这些图片:
Scraper Object
(
[url] => http://buzz.money.cnn.com/2012/07/23/spain-italy-short-selling/?iid=HP_Highlight
[title] => Spain and Italy ban short selling - The Buzz - Investment and Stock Market News
[description] => The Euronext 100 stock index falls sharply on renewed concerns about Spain. Securities regulators in Spain and Italy both instituted short-selling bans Monday as financial markets tumbled. The move is designed to limit the downward pressure
[imageUrls] => Array
(
[0] => http://cnnmoneybuzzblog.files.wordpress.com/2012/07/chart_ws_index_euronext100_201272310932-09.png
[1] => http://i.cdn.turner.com/money/.e1m/img/5.0/data/feargreed/scale.316x95.png
[2] => http://i2.cdn.turner.com/money/.element/img/5.0/sections/contributors/ben_rooney_130.jpg
[3] => http://i2.cdn.turner.com/money/.element/img/5.0/sections/contributors/catherine_tymkiw.02.jpg
[4] => …我正在尝试创建一个呈现Feather Icons程序包的功能组件，但无法弄清楚最后一步。这是我得到的：
这是我的FeatherIcon.vue组件。
<script>
const feather = require("feather-icons");
export default {
components: {},
props: {
type: {
required: true,
type: String
}
},
mounted() {},
render(createElement) {
return createElement(
"svg",
{attrs: feather.icons[this.type].attrs },
feather.icons[this.type].contents
);
}
};
</script>
根据Vue docs的第三个参数，它应该是：
// {String | Array}
// Children VNodes, built using `createElement()`,
// or using strings to get 'text VNodes'. Optional.
但是，我的第三个参数feather.icon [this.type] .contents的结果是一个在svg标记内包含“ innerHTML”的字符串：
"<line x1="6" y1="3" x2="6" y2="15"></line><circle cx="18" cy="6" r="3"></circle><circle cx="6" cy="18" r="3"></circle><path d="M18 9a9 …