如:
$test={"A":1,"B":3,"C":2,"D":1,"E":1};
得到:
$result={"B":3,"C":2,"A":1,"D":1,"E":1};试过rsort($test),不行。很像sql语句中的orderby,能否有办法?
回复内容:
如:
$test={"A":1,"B":3,"C":2,"D":1,"E":1};
得到:
$result={"B":3,"C":2,"A":1,"D":1,"E":1};试过rsort($test),不行。很像sql语句中的orderby,能否有办法?
看看文档
>>> arsort($test)>>> $test=> [ "B" => 3, "c" => 2, "e" => 1, "d" => 1, "A" => 1, ]
function cmp<a>本2文来*源gao($daima.com搞@代@#码(网</a><strong>搞gaodaima代码</strong>($a, $b){if ($a == $b) { return 0;}return ($a < $b) ? -1 : 1;}$a = array(3, 2, 5, 6, 1);usort($a, "cmp");foreach ($a as $key => $value) {echo "$key: $value\n";}
可以看下这个函数 array_multisort