我试图做一个ASP像中继器在PHP

Question

<?php 
$dbhost = 'xxxx'; 
$dbuser = 'xxxx'; 
$dbpass = 'xxxx'; 
$dbname = 'xxxx'; 

$conn = mysql_connect($dbhost, $dbuser, $dbpass) or die ('Error connecting to mysql'); 

mysql_select_db($dbname); 
$result = mysql_query("SELECT * FROM mytable"); 

$row = mysql_fetch_array($result) 
?> 
<?php foreach ($rows as $row): ?> 
    <tr align="center"> 
      <td><?php echo htmlspecialchars($row['Picturedata']); ?></td> 
      </tr> 
<?php endforeach; ?> 

我得到一个错误： 警告：（）提供的foreach无效参数

Answer 1

你需要做一个while循环来拉动每一行。 mysql_fetch_array（）一次只能拉一行。考虑这个解决方案：

<?php 
$dbhost = 'xxxx'; 
$dbuser = 'xxxx'; 
$dbpass = 'xxxx'; 
$dbname = 'xxxx'; 

$conn = mysql_connect($dbhost, $dbuser, $dbpass) or die ('Error connecting to mysql'); 

mysql_select_db($dbname, $conn); 
$result = mysql_query("SELECT * FROM mytable", $conn); 

while ($row = mysql_fetch_array($result)) { 
    echo '<tr align="center"><td>' . htmlspecialchars($row['Picturedata']) . '</td></tr>'; 
} 
?> 

Answer 2

它应该是$行，而不是$行

$rows = mysql_fetch_array($result)