Question

我有两个foreach循环。在第一个foreach循环菜单列表和第二个foreach循环是数据库提取循环。所以我想比较第一个foreach键和第二个foreach值第一个foreach数组结果显示

   Array
(
    [master/city] => City
    [master/national_holiday] => National Holiday
    [master/operator_comments] => Operator Comments
    [master/sensors] => Sensors
)

和第二个foreach数组结果

   Array
        (
            [0] => Array
                (
                    [menu_url] => monitoring/tickets
                    [menu_category] => monitoring
                    [read] => 1
                    [write] => 1
                )

            [1] => Array
                (
                    [menu_url] => monitoring/serach_tickets
                    [menu_category] => monitoring
                    [read] => 1
                    [write] => 1
                )

            [2] => Array
                (
                    [menu_url] => master/national_holiday
                    [menu_category] => monitoring
                    [read] => 1
                    [write] => 0
                )
)

我尝试使用此代码但不能正常工作

   foreach( $first_array as $key => $value) {

  foreach( $second_array as $second ) {
    if ($second['value'] == $key) {
       echo "Hi";
    }
   }
}

你能说出我的错误吗？

我在视图中使用的真实代码

<?php
                    $i = 1;

                    foreach($first_array as $k => $val) {
                    ?>
                    <tr>
                      <td>{{ $i }}</td>
                      <td class="mailbox-name">{{ $val }}</td>
                    <?php
                        foreach ($edit_rights['role_rights'] as $rights) {
                    ?>                                           
                      <td><input type="checkbox" class="master_read" name="menu_master_read[]" <?php if ($rights['menu_url'] == $k) { echo 'checked'; } else {echo ''; }?> value="{{ $k }}"></td>
                      <td><input type="checkbox" class="master_write" name="menu_master_write[]" value="{{ $k }}"></td>
                    </tr>
                     <?php } $i++;  } ?>
                    </tr>

Answer 1

因为我没有看到你的阵列之间有任何关系，但我可以猜到你在寻找什么。

你可能正在寻找第二个数组的menu_url和。{ 第一个数组的关键。

为此，您需要在第二个数组中使用$second['menu_url']。

foreach( $first_array as $key => $value) {
  foreach( $second_array as $second ){
    if ($second['menu_url'] == $key) {
       echo "Hi";
    }
   }
}

Answer 2

如果在$ second_array值上检查匹配，请使用以下代码：

foreach( $first_array as $key => $value) {
      foreach( $second_array as $second=>$val ) {
          foreach($val as $check=>$check_value){
                //var_export($check);echo "\n";
                //var_export($key);echo "\n";
                //var_export($second_array[$second][$check]);echo "\n";
                //var_export($second_array[$second][$check] == $key);echo "\n";
                //echo"======================= \n";
                if ($second_array[$second][$check] == $key) {
                   echo "Hi";
                }
            }
       }
}

如果只是检查[＆＃39; menu_url＆＃39;]匹配array.use此代码：

foreach( $first_array as $key => $value) {
  foreach( $second_array as $second ){
    if ($second['menu_url'] == $key) {
       echo "Hi";
    }
   }
}

在foreach循环中的PHP foreach循环？

2 个答案: