I have users on my site, the user selects their group 1/2/3 from their profile. Based on their selection, they are divided into 3 arrays:
$group1_recipients[], $group2_recipients[], $group3_recipients[]
Sample data:
$group1_recipients = ["用户A","用户B","用户C"], $group2_recipients = ["用户D","用户B","用户E"], $group3_recipients = ["用户A","用户B","用户E"]
This means user A selected group 1 and group 3. Likewise, User B selected groups 1, 2, and 3.
Now, I am creating the image and selecting group 1/2/3 when creating the image. So based on user group selection I want to show/hide a picture:
Example: If I create an image for Group 1 and Group 2, only users who have selected these groups can see the image. And if a user selects group 1 and group 2, they can only see one picture. No duplication.
I followed the following logic:
$groups = ["1", "2", "3"];
$match = false;
foreach ($groups as $g) {
if (in_array($g, $groups)) {
$match = true;
break;
}
}
if(true===$match)
{
if($g == "1"){
$audience = $group1_recipients;
}
else if($g == "2"){
$audience = $group2_recipients;
}
else if($g == "3"){
$audience = $group3_recipients;
}
}
else
{
echo "没有匹配的受众类型";
}
This logic is not entirely valid. When creating pictures for all 3 groups, the user only selects group 2 or group 3 and the pictures are not displayed. This logic leaves the loop once it finds a matching group. Any help on how to fix this?
PS: This is a sample code. Please ignore parsing/syntax errors
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Looks like you have some confusion between image_group and group_recipients, and you are using $g instead of user
<?php //这个图片所属的组 $image_groups = [1, 2, 3]; //每个组的收件人 $group1_recipients = ["用户A","用户B","用户C"]; $group2_recipients = ["用户D","用户B","用户E"]; $group3_recipients = ["用户A","用户B","用户E"]; //所有收件人的数组 $all_groups = [1=> &$group1_recipients, 2=> &$group2_recipients, 3=> &$group3_recipients]; //用户ID $user = '用户A'; //初始设置为false $match = false; // 遍历每个image_group foreach ($image_groups as $group) { //获取groupn_recipients数组 $recipients = &$all_groups[$group]; //如果用户在收件人数组中，则将Match设置为Group if (in_array ($user, $recipients)) { $match = $group; break; } } if ($match) { echo "与组 $group 匹配\n"; } else { echo '不匹配', "\n"; } ?>This is one method. There are many variations. This sets $match to false or the matched group.