我的jquery在我的php中没有工作while while [关闭]

Am trying to run a javascript inside my php while loop but its not working, what i want is that when i click on the button with id check, it will hide that button and show the button with id change but its not working this is my code

<?php
$s = mysqli_query($conn, "SELECT * FROM test");
while($d = mysqli_fetch_array($s))
{
    $id = $d['id'];
    echo '      
        <button id="check'.$id.'" onclick="respond('.$n.');">check'.$id.'</button><br>
        <button id="change'.$id.'" style="display:none;">change'.$id.'</button>
    ';
}
?>
<script>
   function respond(username)
   {
        $("#check'"+<?php echo $id; ?>"'").hide();
        $("#change'"+<?php echo $id; ?>"'").show();
        $.post("ana.php",
        {
          username:username
        });
    }
</script>

Use the jquery's click function, and use javascript's this to identify the selected row. You shouldn't have multiple functions doing the same thing with 1 static value being changed. Here's a rough implementation that I think will fix most of your issues:

<?php
$s = mysqli_query($conn, "SELECT * FROM test");
while($d = mysqli_fetch_array($s))
{
    $id = $d['id'];
    echo '<button class="respond" id="check'.$id.'">check'.$id.'</button><br>
        <button id="change'.$id.'" style="display:none;">change'.$id.'</button>';
}
?>
<script>
    $('.respond').click(function() {
        var id = $(this).attr('id').replace('check', '');
        $("#check" + id).hide();
        $("#change" + id).show();
        $.post("ana.php", {username:username});
    });
</script>

Store whatever n is as a value in the element and get it the same way I am getting your id.