日常工作中经常遇到数组处理,这里整理一下常用的
//二维数组根据age由小到大排序
$arr = [
['name' => '网三', 'age' => 33],
['name' => '谢四', 'age' => 22],
['name' => '赵六', 'age' => 33],
['name' => '赵1', 'age' => 23],
['name' => '赵8', 'age' => 13],
];
usort($arr, function($x, $y) {
return strcasecmp($x['age'], $y['age']);
});
var_dump($arr);
//过滤二维数组age大于23的值
$result = array_filter($arr, function($vo) {
return $vo['age'] <= 23;
});
var_dump($result);
//取出二维数组的age列的values
$result = array_column($arr, 'age');
var_dump($result);
//使得二维数组每个age+1
$result = array_map(function($vo){$vo['age'] += 1; return $vo;},$arr);
var_dump($result);