如何转置多维多文件上传提交并维护关联键? [英] How to transpose a multidimensional multi-file upload submission and maintain associative keys?
问题描述
我有以下形式，当发送多张图像时生成一个多维数组，所有数据默认排序.
I have the following form that when sending multiple images generates a multidimensional array with all the data ordered by default.
表单 HTML 和 PHP:
<html>
<body>
<form enctype="multipart/form-data" action="" method="POST">
<input name="image[]" type="file" multiple />
<input type="submit" name="send" value="Send" />
</form>
</body>
</html>
发送它会生成一个这样的数组:
$file1 = array(
'imagen' => array(
'name' => array(
'Image_name',
'Image_name'
),
'type' => array(
'jpg',
'jpg'
),
'tmp_name' => array(
'jpg',
'jpg'
),
'error' => array(
0,
0
),
'size' => array(
'200',
'200'
)
)
);
我需要以更简单的方式重构这个数组，以便将各个图像值放在一起.
I need to restructure this array in a simpler way so that the respective image values are together.
预期输出:
$file2 = array(
array(
'name' => 'Image_name',
'type' => 'jpg',
'tmp_name' => 'jpg',
'error' => 0,
'size' => 200
),
array(
'name' => 'Image_name',
'type' => 'jpg',
'tmp_name' => 'jpg',
'error' => 0,
'size' => 200
)
);
推荐答案
此任务是关于转置"数组和维护关联键.
This task is about "transposing" an array and maintaining associative keys.
三年后，我决定大修/重写这个答案，因为编码标准比我现在能容忍的要低得多，而且通常有太多的噪音.我只有两种方法可以在我自己的一个项目中执行此任务.两者都提供相同的(期望的)结果；将它们分开的只是编码风格的问题.
Three years later, I have decided to overhaul/rewrite this answer because the coding standard was much lower than I now tolerate and there was generally too much noise. There are only two ways that I would perform this task on one of my own projects. Both provide the same (desired) result; it is only a matter of coding style that divides them.
$POST = [
'image' => [
'name' => ['Image_name1', 'Image_name2'],
'type' => ['jpg', 'png'],
'tmp_name' =>['jpg', 'png'],
'error' => [0, 0],
'size' => ['200', '300']
]
];
函数式编程:
$keys = array_keys($POST['image']);
var_export(
array_map(
function(...$col) use ($keys) {
return array_combine($keys, $col);
},
...array_values($POST['image'])
)
);
语言结构语法:
foreach ($POST['image'] as $key => $entries) {
foreach ($entries as $index => $entry) {
$result[$index][$key] = $entry;
}
}
var_export($result);
这篇关于如何转置多维多文件上传提交并维护关联键?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
