PHP For 循环计算表中的行数，然后使用 MySQL 更新列值

Question

In my form I have a table that is populated using MySQLi. Under the table there is a button that will call an AJAX script which will run my test.php file. This is where I need the for loop. I have 2 values being echo'd. Dotime (which needs to be updated in the database) and taskID which I need for the query.

jQuery code here:

jQuery(document).ready(function(){

$('#UpdateTable').click(function()
{
    getdata();
}); 

function getdata()
{
    console.log($('#UpdateForm').serialize());

    $.ajax(
    {
    type: 'POST',
    url: 'test.php',
    data: $('#UpdateForm').serialize(),
    
    succes: function(data) 
    {
        alert(data);
    },
    error: function() 
    {
        alert("Something went wrong")
    }
    });
}

});

Test.php code:

<?php 
$Time = $_POST['DoTime'];
$TaskID = $_POST['ID'];

echo $TaskID;
echo $Time;

?>

This is my table and the console output when I click update

What I need to know is how do I build a For loop that will count my rows and then will update 1 value to the database using the data that shows up in the console.

Note: I am very bad in PHP, I can do the basics but more advanced stuff like this I can't do properly.

Answer 1

Why count with a for loop? Can't you use the mysql count function?

http://www.w3schools.com/sql/sql_func_count.asp

(May i missunderstood your question... so sorry if this don't help.)