// ----- Edit Row -----

$(document).on("click", "#html_master .edit", function () {
  var $this = $(this);
  var tds = $this.closest('tr').find('td').not('.mr_id').filter(function () {
    return $(this).find('.edit').length === 0;
  });
  if ($this.val() === 'Edit') {
    $this.val('Save');
   if($this.id != '.mr_id'){
        tds.prop('contenteditable', true);
   }
  } else {
    var isValid = true;
    var errors = '';
    $('#myDialogBox').empty();
    var elements = tds;
    if (tds.find('input').length > 0) {
      elements = tds.find('input');
    }
    var dict = {};
    elements.each(function (index, element) {
      var type = $(this).attr('class');
      var value = (element.tagName == 'INPUT') ? $(this).val() : $(this).text();
      console.log(type);
      // ----- Switch statement that provides validation for each table cell -----
      switch (type) {
        case "mr_id":
          dict["MR_ID"] = value;
          break;
        case "mr_name":
          if (value == value.match(/^[a-zA-Zs]+$/)) {
              dict["MR_Name"] = value;
          break;
          }
        case "buyer_id":
          if (!$.isNumeric(value)) {
            isValid = false;
            errors += "Please enter a valid Buyer IDn";
          }
          if (isValid) {
              dict["Buyer_ID"] = value;
          }
          break;
        case "poc_n":
          if (value == value.match(/^[a-zA-Zs]+$/)) {
              dict["MR_POC_N"] = value;
            break;
          }
          else {
            isValid = false;
            errors += "Please enter a valid Namen";
          }
          break;
        case "poc_e":
          if (value == value.match(/^[w-.+]+@[a-zA-Z0-9.-]+.[a-zA-z0-9]{2,4}$/)) {
              dict["MR_POC_E"] = value;
            break;
          }
          else {
            isValid = false;
            errors += "Please enter a valid Emailn";
          }
          break;
        case "poc_p":
          if (value == value.match('^[0-9 ()+/-]{10,}$')) {
              dict["MR_POC_P"] = value;
            break;
          }
          else {
            isValid = false;
            errors += "Please enter a valid Phone Numbern";
          }
          break;
      }
    })
    if (isValid) {
        console.log(dict);
      $this.val('Edit');
      tds.prop('contenteditable', false);
      var request = $.ajax({
          type: "POST",
          url: "update-copy.php",
          data: dict
        });

        request.done(function (response, textStatus, jqXHR){
          if(JSON.parse(response) == true){
            console.log("row updated");
          } else {
            console.log("row failed to updated");
            console.log(response);
            console.log(textStatus);
            console.log(jqXHR);
          }
        });

        // Callback handler that will be called on failure
        request.fail(function (jqXHR, textStatus, errorThrown){
            // Log the error to the console
            console.log(textStatus);
            console.log(jqXHR);
            console.error(
                "The following error occurred: "+
                textStatus, errorThrown
            );
        });

        // Callback handler that will be called regardless
        // if the request failed or succeeded
        request.always(function () {

        });
    } else {
      alert(errors);
    }
  }
});

<?php

  $MR_ID = $_POST['MR_ID'];
  $MR_Name = $_POST['MR_Name'];
  $Buyer_ID = $_POST['Buyer_ID'];
  $MR_POC_N = $_POST['MR_POC_N'];
  $MR_POC_E = $_POST['MR_POC_E'];
  $MR_POC_P = $_POST['MR_POC_P'];

  $host="xxxxxxxxxx";
  $dbName="xxxxx";
  $dbUser="xxxxxxxxxxxx";
  $dbPass="xxxxxxxxx";

  $pdo = new PDO("sqlsrv:server=".$host.";Database=".$dbName, $dbUser, $dbPass);

  $sql = "UPDATE Stage_Rebate_Master SET MR_Name = :MR_Name, Buyer_ID = :Buyer_ID, MR_POC_N = :MR_POC_N, MR_POC_E = :MR_POC_E, MR_POC_P = :MR_POC_P WHERE MR_ID = :MR_ID";
  $stmt = $pdo->prepare($sql);
  $stmt->bindValue(':MR_ID', $MR_ID);
  $stmt->bindValue(':MR_Name', $MR_Name);
  $stmt->bindValue(':Buyer_ID', $Buyer_ID);
  $stmt->bindValue(':MR_POC_N', $MR_POC_N);
  $stmt->bindValue(':MR_POC_E', $MR_POC_E);
  $stmt->bindValue(':MR_POC_P', $MR_POC_P);
  $result = $stmt->execute();
  echo json_encode($result);

?>

<body>

    <img src="image.png" id="image">

    <form>
    Table Name: <input type="text" value="Stage_Rebate_Master" id="tableNameInput" readonly>
    <button class="create-user" id="insertButton">Add Vendor</button>
    </form>


<div id="dialog-form" title="Add Vendor">
  <p class="validateTips">All form fields are required.</p>

<!-- Dialog box displayed after add row button is clicked -->
  <form>
    <fieldset>
      <label for="mr_name">Vendor</label>
      <input type="text" name="mr_name" id="mr_name" class="text ui-widget-content ui-corner-all" value="test">
      <label for="buyer_id">Buyer ID</label>
      <input type="text" name="buyer_id" id="buyer_id" class="text ui-widget-content ui-corner-all" value="99">
      <label for="poc_n">POC Name</label>
      <input type="text" name="poc_n" id="poc_n" class="text ui-widget-content ui-corner-all" value="name">
      <label for="poc_p">POC Email</label>
      <input type="text" name="poc_e" id="poc_e" class="text ui-widget-content ui-corner-all" value="test@tst.com">
      <label for="poc_p">POC Phone</label>
      <input type="text" name="poc_p" id="poc_p" class="text ui-widget-content ui-corner-all" value="5555555555">

      <!-- Allow form submission with keyboard without duplicating the dialog button -->
      <input type="submit" id="submit" tabindex="-1" style="position:absolute; top:-1000px">
    </fieldset>
  </form>
</div>



<div id="users-contain" class="ui-widget">
<table id="html_master" class="ui-widget ui-widget-content">
<thead>
    <tr class="ui-widget-header">
    <td>ID</td>
    <td>Vendor</td>
    <td>Buyer ID</td>
    <td>POC Name</td>
    <td>POC Email</td>
    <td>POC Phone</td>
    <td>Edit</td>
    </tr>
</thead>
<tbody>


<?php
    /* Foreach loop that brings in information to populate table */
    foreach ($dbh->query($sql) as $rows){
    ?>
    <tr id="<?php echo intval ($rows['MR_ID'])?>">
        <td class="mr_id" id="<?php echo intval ($rows['MR_ID'])?>" contenteditable="false"><?php echo intval ($rows['MR_ID'])?></td>
        <td class="mr_name" id="mr_name-<?php echo intval ($rows['MR_ID'])?>" name="field" contenteditable="false"><?php echo $rows['MR_Name']?></td>
        <td class="buyer_id" id="buy_id<?php echo intval ($rows['MR_ID'])?>" contenteditable="false"><?php echo $rows['Buyer_ID']?></td>
        <td class="poc_n" id="poc_n-<?php echo intval ($rows['MR_ID'])?>" contenteditable="false"><?php echo $rows['MR_POC_N']?></td>
        <td class="poc_e" id="poc_e-<?php echo intval ($rows['MR_ID'])?>" contenteditable="false"><?php echo $rows['MR_POC_E']?></td>
        <td class="poc_p" id="poc_p-<?php echo intval ($rows['MR_ID'])?>" contenteditable="false"><?php echo $rows['MR_POC_P']?></td>
        <td><input type="button" class="edit" name="edit" value="Edit">
    </tr>
 <?php
  }
 ?>
</tbody>
</table>
</body>