PHP jQuery Dynamic Textbox

Last modified on May 8th, 2018 by Vincy.

This tutorial helps to add or remove textbox dynamically using jQuery and PHP. It also describes how to read the values of dynamically created textboxes and save them to the database.

Save textbox HTML in separate file.
Load and append dynamic textbox.
Remove textbox item on delete event.
Read and insert data into the database on submit.

View Demo

Database Script

Run this CREATE statement while setting up this example in your local environment.

CREATE TABLE `item` (
  `id` int(11) NOT NULL,
  `item_name` varchar(255) NOT NULL,
  `item_price` double NOT NULL
);

Textbox HTML

Save this code as input.php. This file will be loaded later using jQuery to append textbox HTML code to the target location.

<DIV class="product-item float-clear" style="clear:both;">
<DIV class="float-left"><input type="checkbox" name="item_index[]" /></DIV>
<DIV class="float-left"><input type="text" name="item_name[]" /></DIV>
<DIV class="float-left"><input type="text" name="item_price[]" /></DIV>
</DIV>

Load and Append Dynamic Textbox

The textbox markup will be added dynamically by using jQuery append() and load(). The code is,

function addMore() {
   $("<DIV>").load("input.php", function() {
      $("#product").append($(this).html());
   });	
}

Remove Textbox

We have the checkbox for each row dynamically added the text box for selecting rows to be removed from delete event. And script for removing checked items is,

function deleteRow() {
   $('DIV.product-item').each(function(index, item){
      jQuery(':checkbox', this).each(function () {
         if ($(this).is(':checked')) {
	    $(item).remove();
         }
      });
   });
}

Read Dynamic Textbox Input

This is, as usual, we have seen in several MySQL crud examples. The code is,

<?php
	if(!empty($_POST["save"])) {
	    $conn = mysqli_connect("localhost","root","test", "blog_samples");
		$itemCount = count($_POST["item_name"]);
		$itemValues=0;
		$query = "INSERT INTO item (item_name,item_price) VALUES ";
		$queryValue = "";
		for($i=0;$i<$itemCount;$i++) {
			if(!empty($_POST["item_name"][$i]) || !empty($_POST["item_price"][$i])) {
				$itemValues++;
				if($queryValue!="") {
					$queryValue .= ",";
				}
				$queryValue .= "('" . $_POST["item_name"][$i] . "', '" . $_POST["item_price"][$i] . "')";
			}
		}
		$sql = $query.$queryValue;
		if($itemValues!=0) {
		    $result = mysqli_query($conn, $sql);
			if(!empty($result)) $message = "Added Successfully.";
		}
	}
?>