我有一个使用PHP生成的数组，如下所示：
Array (
[0] => Array ( [user] => test 1 [esttime] => 5 mins [destination] => testing location svvfefhsrdfd )
[1] => Array ( [user] => test 2 [esttime] => 5 mins [destination] => testing location fsdfdsv )
[2] => Array ( [user] => test 5 [esttime] => 8 mins [destination] => testing location scvvfe )
[3] => Array ( [user] => test 3 [esttime] => 5 mins [destination] => testing location sfds)
[4] => Array ( [user] => test 4 [esttime] => 8 mins [destination] => testing location gfsdarr )
[5] => Array ( [user] => test 6 [esttime] => 10 mins [destination] => testing location dgfd )
)
该数组具有关键字user、估计时间和目的地以及相关值，我需要使用esttime关键字值对该数组进行排序。
我试了很多方法，但都找不到办法。
任何知道如何使用php对这个数组进行排序的人，感谢
在这种情况下，您可以使用自定义排序usort()，然后只使用相对时间的strtotime()：
usort($array, function($a, $b){
$time_a = strtotime($a['esttime']);
$time_b = strtotime($b['esttime']);
return $time_a - $time_b;
});
echo '<pre>';
print_r($array);
样本输出
一种方法是生成一个新数组：
foreach($array as $row) {
$new[str_replace(" ","_",$row['esttime'])][] = $row;
}
print_r（$new）在之后应该是这样的
Array (
[5_mins][0] => Array ([user] => test 1 [esttime] => 5 mins [destination] => testing location svvfefhsrdfd)
[5_mins][1] => Array ( [user] => test 2 [esttime] => 5 mins [destination] => testing location fsdfdsv)
[5_mins][2] => Array ( [user] => test 3 [esttime] => 5 mins [destination] => testing location sfds)
[8_mins][0] => Array ( [user] => test 5 [esttime] => 8 mins [destination] => testing location scvvfe )
[8_mins][1] => Array ( [user] => test 4 [esttime] => 8 mins [destination] => testing location gfsdarr )
[10_mins][0] => Array ( [user] => test 6 [esttime] => 10 mins [destination] => testing location dgfd )
)