将PHP转换为HTML表

Question

Having issues with this PHP echo while loop. What am I doing wrong? Page won't load due to it.

$query = mysql_query("SELECT * FROM `uploads`");
while($row = mysql_fetch_assoc($query)) //while loop
{
$id = $row['id']; //get ID
$name = $row['name']; //get name
//variable for getting name and ID

// echo out all songs and display with name.

 echo "<table>";
 echo "<tr>";
 echo "<td>Name</td>";
 echo "<td><a href='listen.php?id=$id' target='_new' >$name </a></td>";
 echo "</tr>";
 echo "</table>";

Answer 1

Try to separate your HTML from PHP for easy debugging and your code will be a lot cleaner

<table>
    <tr>
        <th>Name</th>
    </tr>
    <?php
        while ($row = $result->fetch_assoc()) : ?>
        <tr>
            <td><a href='listen.php?id=<?php echo $row['id']; ?>' target='_new' ><?php echo $row['name']; ?></a></td>
        </tr>
    <?php endwhile; ?>
</table>

Answer 2

In this code you are attempting to link to an $id and $name, one can only assume, from a mysqli_query function which you have omitted.

However, I can see what you are attempting. Firstly, you need not specify echo on every line. Applying this to a snippet of your code changing

<?php
 echo "<table>";
 echo "<tr>";
?>

to

<?php
 echo "<table>
        <tr>";
?>

will produce the same result and save some typing.

This is what you are looking for.

<?php
 $con = mysqli_connect("localhost", "my_user", "my_password", "my_db");
 $sql = "SELECT * FROM `uploads`";
 $qry = mysqli_query($con,$sql) or die(mysqli_error($con));


 $table_content = "";
 while($row = mysqli_fetch_assoc($qry)){
      $id = $row['id'];
      $name = $row['name'];

      $table_content .= "<tr>
                        <td>Name</td>
                        <td><a href='listen.php?id=$id' target='_new'>$name</a></td>
                         </tr>";
    }

   echo "<table>".$table_content."</table>";
 ?>

This will produce a table with 2 columns, the first having the value 'Name' for each column, the second a link to the record ID with the records name as the text.

If you are after a table heading called 'Name' you will need to a row with

<th>Name</th>

Here I use mysqli_query as mysql_query is deprecated. mysqli_error is useful to include when querying your database. In the event the connection fails to execute the query it will provide a (not always useful) error, but atleast point you towads a solution.