[英]php get max key from same value
How can I get max key from same value? 如何从相同的值获得最大密钥?
Example: 例:
1 => 32
2 => 32
3 => 32
4 => 5
5 => 5
6 => 11
7 => 11
Result: 结果:
3 => 32
5 => 5
7 => 11
Assuming values are all integer 假设值都是整数
$array = [
1 => 32,
2 => 32,
3 => 32,
4 => 5,
5 => 5,
6 => 11,
7 => 11,
];
$result = array_flip(array_flip($array));
var_dump($result);
krsort($array);
ksort(array_unique($array);
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