javascript - PHP:javascript警报，带有来自sql查询的值，进入IF条件

Question

使用以下代码，仅当检索到的记录大于 1 时，才会出现一个包含 sql 查询数据的弹出表。

$sql = "SELECT * FROM pt_locations WHERE country = ('$countryCode') AND location = ('$cityCode')";
$result = $conn->query($sql);

$rowcount=mysqli_num_rows($result);

$message = "Records found: " . $rowcount . "<br /><br />";

if ($rowcount > 1) {

echo '<script language="javascript">';
echo 'alert' .$message;

foreach($result as $val){ 

$id_country = $val["country"] ;
$id_code = $val["code"] ;
$id_location = $val["location"] ;
$id_latitude = $val["latitude"] ;
$id_longitude = $val["longitude"] ;

echo "<table border='1' cellpadding='5'>";
echo "<tr>";
echo "<td><i><strong>ID Code</strong></i></td><td>";
echo $id_code."</td>";
echo "<td><i><strong>Country</strong></i></td><td>";
echo $id_country."</td>";
echo "<td><i><strong>Code</strong></i></td><td>";
echo $code."</td>";
echo "<td><i><strong>Location</strong></i></td><td>";
echo $id_location."</td>";
echo "<td><i><strong>Latitude</strong></i></td><td>";
echo $id_latitude."</td>";
echo "<td><i><strong>Longitude</strong></i></td><td>";
echo $id_longitude."</td>";
echo "</tr>";
echo "</table><br /><br />";
} 
echo '</script>'; 
}

记录计数正确完成，但我无法以任何方式显示弹出窗口。

Answer 1

试试这个。希望这对您有帮助。

 $sql = "SELECT * FROM pt_locations WHERE country = ('country') AND 
location = ('location')";
$result = $conn->query($sql);

$rowcount=mysqli_num_rows($result);

$message = "Records found: " . $rowcount;

if ($rowcount > 1) {

echo '<script language="javascript">';
echo 'alert("'.$message.'")'; 
 echo '</script>';

while($val=mysqli_fetch_assoc($result)){ 

$id_country = $val["country"] ;
$id_code = $val["code"] ;
$id_location = $val["location"] ;
$id_latitude = $val["latitude"] ;
$id_longitude = $val["longitude"] ;

echo "<table border='1' cellpadding='5'>";
echo "<tr>";
echo "<td><i><strong>ID Code</strong></i></td><td>";
echo $id_code."</td>";
echo "<td><i><strong>Country</strong></i></td><td>";
echo $id_country."</td>";
echo "<td><i><strong>Code</strong></i></td><td>";
echo $code."</td>";
echo "<td><i><strong>Location</strong></i></td><td>";
echo $id_location."</td>";
echo "<td><i><strong>Latitude</strong></i></td><td>";
echo $id_latitude."</td>";
echo "<td><i><strong>Longitude</strong></i></td><td>";
echo $id_longitude."</td>";
echo "</tr>";
echo "</table><br /><br />";
}  
}