<?php
//按C的大小重新排列数组
$arr = array(
array('a'=>33,'b'=>32,'c'=>12),
array('a'=>33,'b'=>32,'c'=>13),
array('a'=>33,'b'=>32,'c'=>11)
);
//按C的大小重新排列数组
$arr = array(
array('a'=>33,'b'=>32,'c'=>12),
array('a'=>33,'b'=>32,'c'=>13),
array('a'=>33,'b'=>32,'c'=>11)
);
array('a'=>33,'b'=>32,'c'=>12),
array('a'=>33,'b'=>32,'c'=>13),
array('a'=>33,'b'=>32,'c'=>11)
);
usort($arr, 'sortByC');
function sortByC($a, $b) {
return $a['c'] - $b['c'];
}
echo '<pre>';
print_r($arr);Array
(
[0] => Array
(
[a] => 33
[b] => 32
[c] => 11
)
[1] => Array
(
[a] => 33
[b] => 32
[c] => 12
)
[2] => Array
(
[a] => 33
[b] => 32
[c] => 13
)
)
array_multisort($t,$arr);
print_r($arr);Array
(
[0] => Array
(
[a] => 33
[b] => 32
[c] => 11
) [1] => Array
(
[a] => 33
[b] => 32
[c] => 12
) [2] => Array
(
[a] => 33
[b] => 32
[c] => 13
))
$arr = array(
array('a'=>33,'b'=>32,'c'=>12),
array('a'=>33,'b'=>32,'c'=>13),
array('a'=>33,'b'=>32,'c'=>11)
);
array_multisort($arr);
print_r($arr);
#Array ( [0] => Array ( [a] => 33 [b] => 32 [c] => 11 ) [1] => Array ( [a] => 33 [b] => 32 [c] => 12 ) [2] => Array ( [a] => 33 [b] => 32 [c] => 13 ) )