发送foreach循环PHP和JSON

我不确定我哪里出了问题，但当我使用此邮件功能时：

    <?php
function printMember($member) {
    foreach($member as $key=>$value) {
        echo "$key : $value <br />";
    }
}

$to = 'email@address.co.za';

$subject = 'Application Form';

$headers = "From: " . strip_tags($_POST['req-email']) . "\r\n";
$headers .= "Reply-To: ". strip_tags($_POST['req-email']) . "\r\n";
$headers .= "BCC: email@address.co.za\r\n";
$headers .= "MIME-Version: 1.0\r\n";
$headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n";


$json = $_POST['parameters'];
$json_string = stripslashes($json);
$data = json_decode($json_string, true);

$depCount = count($data["dependants"]);


$msg .= "<h2>Main member data:</h2>";
$msg .= printMember($data["mainmember"]);

$msg .= "<h2>There are $depCount Dependants</h2>";

foreach ($data["dependants"] as $index => $dependant) {
   $msg .= "<h2>Dependant $index</h2>";
   $msg .= printMember($dependant);
}

 mail($to, $subject, $msg, $headers);

而不是（如控制台中所示）：

以下是JSON：

{
    "mainmember": {
        "name": "name",
        "surname": "surename",
        "id": "6110190027087",
        "age": "51",
        "gender": "Female",
        "townofbirth": "george",
        "email": "naem@gmail.com",
        "contact": "0512148615",
        "passport": "1111111111111",
        "postal": "test",
        "postal_code": "4545",
        "residential": "test",
        "residential_code": "4545"
    },
    "dependants": [
        {
            "name": "dep1",
            "surname": "dep1",
            "id": "8202255133088",
            "age": "30",
            "gender": "Male",
            "townofbirth": "dep1",
            "cell": "0145264448",
            "email": "dep1",
            "passport": "2222222222222",
            "relationship": "parent"
        }
    ]
}

我确实得到了答案：

但不是真正的邮寄

---

非常感谢您的任何帮助

问题出在

printMember（）

函数上，您正在执行

echo

，但没有返回任何内容：按如下方式更新printMember函数：

function printMember($member) {
    foreach($member as $key=>$value) {
        //Fill the aux string first
        $str.= "$key : $value <br />";
    }
    //string that will be added to $msg variable inside the loop
    return $str;
}

函数printMember（$member）{
foreach（$key=>$value的成员）{
//首先填充辅助字符串
$str.=“$key:$value
”；
}
//将添加到循环内$msg变量的字符串
返回$str；
}

您正在执行“echo”，而不是返回。检查我的答案

{
    "mainmember": {
        "name": "name",
        "surname": "surename",
        "id": "6110190027087",
        "age": "51",
        "gender": "Female",
        "townofbirth": "george",
        "email": "naem@gmail.com",
        "contact": "0512148615",
        "passport": "1111111111111",
        "postal": "test",
        "postal_code": "4545",
        "residential": "test",
        "residential_code": "4545"
    },
    "dependants": [
        {
            "name": "dep1",
            "surname": "dep1",
            "id": "8202255133088",
            "age": "30",
            "gender": "Male",
            "townofbirth": "dep1",
            "cell": "0145264448",
            "email": "dep1",
            "passport": "2222222222222",
            "relationship": "parent"
        }
    ]
}

function printMember($member) {
    foreach($member as $key=>$value) {
        //Fill the aux string first
        $str.= "$key : $value <br />";
    }
    //string that will be added to $msg variable inside the loop
    return $str;
}