Php 我想使用循环将元素随机添加到数组中

我想使用循环将元素随机添加到数组中

我有一个固定的等级，如下所示

$ranks=array("10","9","8","7","6","5","4","3","2","1");

根据一条链，我有一个随机的排名位置

$agent_ranks=array("10","6","2","1");

哪些是缺少的索引

我已经计算了数组之间的差异

$arr_diff=array("9","8","7","5","4","3");

现在我想要一个动态数组作为结果：

$arr_diff_new=array("0","9","8","7","0","5","4","3","0","0");

如何在缺少的索引处添加

value=“0”

<?php
$ranks=array("10","9","8","7","6","5","4","3","2","1");
$agent_ranks= array_flip( array("10","6","2","1") );

foreach( $ranks as $k=>$v ) {
    if ( isset($agent_ranks[$v]) ) {
        $ranks[$k] = 0;
    }
}

var_export($ranks);

---

另请参见：

您也可以在if子句中使用数组中的

，检查秩是否为int
$agent\u秩
，然后将0或旧秩值推送到新数组

$arr_diff_new = array();
foreach($ranks as $rank){
    array_push($arr_diff_new,(in_array($rank,$agent_ranks))?0:$rank);
}

您可以使用数组中的
和for循环执行此操作：

$ranks=array("10","9","8","7","6","5","4","3","2","1");
$agent_ranks=array("10","6","2","1");

for($i=0;$i < count($ranks); $i++){
    if(in_array($ranks[$i], $agent_ranks)){
        $newarray[$i] = 0;
    }else{
        $newarray[$i] = $ranks[$i];
    }
}
print_r($newarray);

$ranks=数组（“10”、“9”、“8”、“7”、“6”、“5”、“4”、“3”、“2”、“1”）；
$agent_秩=数组（“10”、“6”、“2”、“1”）；
对于（$i=0；$i
您可以使用数组函数数组映射

<?php
$array1=array("10","9","8","7","6","5","4","3","2","1");
print_r(array_map('filter',$array1));
function filter($a){
 $array2=array("9","8","7","5","4","3");
 if(in_array($a,$array2)){
    return $a;
 }else{
    return 0;
 }
}

只需将
与
foreach
循环一起使用

$ranks=array("10","9","8","7","6","5","4","3","2","1");
$agent_ranks=array("10","6","2","1");
$result = array();
foreach($ranks as $key => $value){
    $result[] = in_array($value,$agent_ranks) ? 0 : $value;
}
print_r($result);

创建一个新数组，遍历列组，根据缺失索引xbtw中是否存在值，将其添加到0或数字中：位置的随机性是什么？无需使用像as
array\u flip
array\u flip比array\u flip更“额外”的是什么？顺便说一句：也不需要使用foreach。它简单方便@VivekSrivastava：如果是工作，那么就放弃投票和标记作为答案，这样其他用户就会信任标记答案。
$ranks=array("10","9","8","7","6","5","4","3","2","1");
$agent_ranks=array("10","6","2","1");
$result = array();
foreach($ranks as $key => $value){
    $result[] = in_array($value,$agent_ranks) ? 0 : $value;
}
print_r($result);