PHP - 如何检查两个数组并搜索匹配的键并合并值

Question

如何检查两个数组并搜索匹配的键，并将第一个数组的值与第二个数组的匹配键合并。请帮助我，因为我是新手。

示例：

1st array = {id => 11,name => 'name',age => 18 }


2nd array = {id,name,age,school}

我想通过将匹配值添加到第二个数组

来获得结果

2nd array = {id => 11,name => 'name',age => 18,school => }

Answer 1

试试这个

$a = ['id' => 11,'name' => 'name','age' => 18];
$b = array_flip(['id','name','age','school']);
foreach($b as $key => &$value){
    $value = '';
}
$result = array_merge($b, $a);

Answer 2

一种简单的方法是循环

$first= array('id' => 11,'name' => 'name','age' => 18 );

$second = array('id','name','age','school');

foreach ($second as $value) {
    if(isset($first[$value])){
        $final[$value] =  $first[$value];
    }

};
print_r($final);

第二阵列翻转和数组合并

$first = ['id' => 11,'name' => 'name','age' => 18];
$second= array_flip(['id','name','age','school']);
foreach($second as $key => s$value){
    $value = '';
}
$result = array_merge($second, $first);
print_r($result);

Answer 3

使用array_merge

<?php
$array1 = array('id' => '11', 'name' => 'name', 'age' => 18);
$array2 = array('id','name','age','school');

$array3 = array_merge(array_fill_keys($array2, null), $array1);

print_r($array3);
?>