当我单击php中的保存amt按钮时如何更新复选框选中的行

Question

I want to update checkbox checked rows when i click on save amt button. Please help me i getting error.

<?php
include_once("config.php");
if(isset($_POST['submit']))
{
  $paitAmt = $_POST['paidamt'];
  $uid = $_POST['uid'];
  $array = array($paitAmt, $uid);
  foreach ($array as list($paitAmt, $uid)) {
  $sql = "UPDATE tbldemo SET paidAmt = '$paitAmt' WHERE id = '$uid'";
  echo $sql;
  $result = mysql_query($sql);
  echo 'Updated Successfully';
  }
}
?>

Answer 1

Try this:

<?php
include_once("config.php");
if(isset($_POST['submit']))
{
  $paitAmt = $_POST['paidamt'];
  $uid = $_POST['uid'];
  foreach ($paitAmt as $key=>$value) {
  $sql = "UPDATE tbldemo SET paidAmt = '$value' WHERE id = '{$uid[$key]}'";
  //echo $sql;
  $result = mysql_query($sql);
  echo 'Updated Successfully';
  }
}
?>