update data when click a button on each row - php

Question

I'm a newbie programmer. I need to select then update data when click a button on each row. now I can select and show data but just first update button is working. I think cause of this issue is button id is same. I can't figure out how to create unique id. I try to change id="updatedb" to id="$i" and nothing working
my script is :
$(function(){
$('#updatedb').click(function(){
var a = $('#updatedb').attr('id');
$('#textstatus').val(a);
alert ($('#updatedb').attr('id'));
});
});
and php is :
$sql = $connectdb->query($checknode);
$i = 0;
echo "<table border=1>";
if (!$sql) {
echo $connectdb->error;
else {
while ($row=$sql->fetch_row()) {
$crow = "updatedb".$i;
//echo $crow."<br />";
echo "<form method='post' action=''>";
echo '<tr><td>'.$row[0].'
</td><td>'.$row[1].'</td><td>'.$row[2].'
</td><td>'.$row[3].'</td><td>'.$row[4].'
</td><td>'.$row[5].'</td><td>
<input type="button" id="updatedb" name="updatedb" value="update">
<input type="text" id="textstatus" name="textstatus"
value="" disabled="disabled"></td></tr>';
$i++;
}
}
echo "</form>";
echo "</table>";

Answer 1

You can use class rather then id for button to update see the code below
jquery
$(function(){
$('.updatedb').click(function(){
var a = $(this).attr('class');
$(this).parents('tr').find('.textstatus').val(a);
alert (a);
});
});
php
$sql = $connectdb->query($checknode);
$i = 0;
echo "<table border=1>";
if (!$sql) {
echo $connectdb->error;
}else
{
while ($row=$sql->fetch_row()) {
$crow = "updatedb".$i;
//echo $crow."<br />";
echo "<form method='post' action=''>";
echo '<tr><td>'.$row[0].'
</td><td>'.$row[1].'</td><td>'.$row[2].'
</td><td>'.$row[3].'</td><td>'.$row[4].'
</td><td>'.$row[5].'</td><td>
<input type="button" class="updatedb" name="updatedb" value="update">
<input type="text" class="textstatus" name="textstatus"
value="" disabled="disabled"></td></tr>';
$i++;
}
}
echo "</form>";
echo "</table>";