MySqlQuery使用阵列

Question

我需要一些帮助，这代码：

<?php 
include("config.php"); 

$Servico=implode(" ", $_POST['service']); 

$con=mysqli_connect("","","",""); //I hid the info here 

if (mysqli_connect_errno()) 
    { 
     echo "Falhou a conexão ao MySQL: " . mysqli_connect_error(); 
    } 

$to = mysqli_query($con,"SELECT Email FROM utilizadores WHERE Nome LIKE '%$Servico%'"); 
$row = mysqli_fetch_assoc($to); 
$row['Email']; 
foreach ($row as $destino) 
    { 
     echo $destino; 
    } 

?> 

该阵列在其他代码创建的，通过选择存在于数据库中的一个或多个用户。然后它会创建与所选用户一起的阵列。

当我的阵列只有一个名字，它可以正确检索电子邮件，但是当我有多个，它给了我：

Warning: Invalid argument supplied for foreach() in /home/a5301436/public_html/criartarefa.php on line 49 

有人能帮助我吗？

Answer 1

以下是使用IN的方法。

$con=mysqli_connect("","","",""); //I hid the info here 

if (mysqli_connect_errno()) 
{ 
    echo "Falhou a conexão ao MySQL: " . mysqli_connect_error(); 
} 

$Servico=implode(", ", array_map(function($s) use ($con) { 
    return "'" . mysqli_real_escape_string($con, $s) . "'"; 
    }, $_POST['service'])); 

$to = mysqli_query($con,"SELECT Email FROM utilizadores WHERE Nome IN ($Servico)"); 

while ($row = mysqli_fetch_assoc($to)){ 
    echo $row['Email']; 
}