代码：
$array = array('even' => array(array('key' => 'test','key2' => 'Wn'), array('key' => 'test3', 'key2' => 'Bx')),
'not_even' => array(array('key' => 'test2','key2' => 'Xn'), array('key' => 'test4', 'key2' => 'Gy')),
);
echo '<pre>';
print_r($array);
echo '</pre>';
输出：
Array
(
[even] => Array
(
[0] => Array
(
[key] => test
[key2] => Wn
)
[1] => Array
(
[key] => test3
[key2] => Bx
)
)
[not_even] => Array
(
[0] => Array
(
[key] => test2
[key2] => Xn
)
[1] => Array
(
[key] => test4
[key2] => Gy
)
)
)
我想排序，结果应该是：
Array
(
[0] => Array
(
[key] => test
[key2] => Wn
)
[1] => Array
(
[key] => test2
[key2] => Xn
)
[2] => Array
(
[key] => test3
[key2] => Bx
)
[3] => Array
(
[key] => test4
[key2] => Gy
)
)
那么如何分类呢？数组中的键应为：测验测试2测试3测试4。如何使用foreach或其他方法？什么是最好的解决方案。重要的是"关键"，"关键2"并不重要。
尝试这个
$array = array('even' => array(array('key' => 'test5','key2' => 'Wn'), array('key' => 'test10', 'key2' => 'Bx')),
'not_even' => array(array('key' => 'test1','key2' => 'Xn'), array('key' => 'test', 'key2' => 'Gy')),
);
$new_array = array();
// changing structure
foreach($array as $values){
$new_array = array_merge($new_array, $values);
}
// dump array
echo '<pre>';
print_r($new_array );
echo '</pre>';
// sorting
/// function for sorting
function cmp($a, $b)
{
return strcasecmp($a['key'], $b['key']);
}
// sort by 'key'
uksort($new_array, "cmp");
// dump array
echo '<pre>';
print_r($new_array );
echo '</pre>';
注意：这是字符串排序，所以test10<test5
试试这个例子，我已经在我的系统中进行了测试，它运行得很好。
<?php
$array = array('even' => array(array('key' => 'test','key2' => 'Wn'), array('key' => 'test3', 'key2' => 'Bx')),
'not_even' => array(array('key' => 'test2','key2' => 'Xn'), array('key' => 'test4', 'key2' => 'Gy')),
);
//Before Sorting
echo '<pre>';
print_r($array);
echo '</pre>';
$my_array = array();
foreach($array as $values){
$my_array = array_merge($my_array, $values);
}
//After Sorting
asort($my_array);
echo '<pre>';
print_r($my_array );
echo '</pre>';
?>
输出：-
Array
(
[even] => Array
(
[0] => Array
(
[key] => test
[key2] => Wn
)
[1] => Array
(
[key] => test3
[key2] => Bx
)
)
[not_even] => Array
(
[0] => Array
(
[key] => test2
[key2] => Xn
)
[1] => Array
(
[key] => test4
[key2] => Gy
)
)
)
Array
(
[0] => Array
(
[key] => test
[key2] => Wn
)
[2] => Array
(
[key] => test2
[key2] => Xn
)
[1] => Array
(
[key] => test3
[key2] => Bx
)
[3] => Array
(
[key] => test4
[key2] => Gy
)
)
我想这是你需要的。
您可以使用array_multsort（）
试试这样的东西：
foreach ($array as $key => $row) {
$array1[$key] = $row[0];
}
array_multisort($array1, SORT_DESC, $array);