how to insert multiple rows in database using php code example

Example: inserting multiple rows in a table using php form into the database

<?php//session_start();include('connect.php');if(isset($_POST['submit'])){for($i=0;$i<count($_POST['slno']);$i++){		$student_name = $_POST['student_name'][$i];		$phone_no = $_POST['phone_no'][$i];		$age = $_POST['age'][$i];		$date_of_birth = $_POST['date_of_birth'][$i];		if($student_name!=='' && $phone_no!=='' && $age!=='' && $date_of_birth!==''){	$sql="INSERT INTO student(student_name,phone_no,age,date_of_birth)VALUES('$student_name','$phone_no','$age','$date_of_birth')";			$stmt=$con->prepare($sql);			$stmt->execute();		    //echo '<div class="alert alert-success" role="alert">Submitted Successfully</div>';		}		else{						echo '<div class="alert alert-danger" role="alert">Error Submitting in Data</div>';		}	}	echo "<script type='text/javascript'>";		echo "alert('Submitted successfully')";		echo "</script>";}?><html><head><title>ajax example</title><link rel="stylesheet" href="bootstrap.css" crossorigin="anonymous"><!-- Optional theme --><link rel="stylesheet" href="bootstrap-theme.css" crossorigin="anonymous"><style>.container{		width:80%;	height:30%;	padding:20px;}</style></head><body><div class="container"><h3 align="center"><u>Inserting Multiple Rows in PHP</u></h3><br/><br/><br/>	<form class="form-horizontal" action="#" method="post">	<div class="row">		<div class="col-sm-1">	      <label for="Age">Sl No:</label>	      <input type="text" class="form-control sl" name="slno[]" id="slno" value="1" readonly="">	    </div>	    	    <div class="col-sm-3">	      <label for="Student Name">Student Name:</label>	      <input type="text" class="form-control" name="student_name[]" id="st_name" placeholder="Enter Student Name">	    </div>	    	    <div class="col-sm-3">	     <label for="Phone">Phone No*:</label>	      <input type="text" class="form-control" name="phone_no[]" id="pn" placeholder="Enter Phone No">	    </div>	    	    <div class="col-sm-1">	      <label for="Age">Age:</label>	      <input type="text" class="form-control" id="age" name="age[]" placeholder="Enter Age">	    </div>				<div class="col-sm-3">	     <label for="DateofBirth">Date of Birth:</label>	     	<input type="date" id="dob" name="date_of_birth[]" class="form-control"/>	    </div>	    		</div><br/>		<div id="next"></div>		<br/>	<button type="button" name="addrow" id="addrow" class="btn btn-success pull-right">Add New Row</button>	<br/><br/>	<button type="submit" name="submit" class="btn btn-info pull-left">Submit</button>	</form></div><script src="jquery-3.2.1.min.js"></script><script src="bootstrap.min.js"></script><script>$('#addrow').click(function(){		var length = $('.sl').length;		var i   = parseInt(length)+parseInt(1);		var newrow = $('#next').append('<div class="row"><div class="col-sm-1"><label for="Age">Sl No:</label><input type="text" class="form-control sl" name="slno[]" value="'+i+'" readonly=""></div><div class="col-sm-3"><label for="Student Name">Student Name:</label><input type="text" class="form-control" name="student_name[]" id="st_name'+i+'" placeholder="Enter Student Name"></div><div class="col-sm-3"><label for="Phone">Phone No*:</label><input type="text" class="form-control" name="phone_no[]" id="pn'+i+'" placeholder="Enter Phone No"></div><div class="col-sm-1"><label for="Age">Age:</label><input type="text" class="form-control" id="age'+i+'" name="age[]" placeholder="Enter Age"></div><div class="col-sm-3"><label for="DateofBirth">Date of Birth:</label><input type="date" id="dob'+i+'" name="date_of_birth[]" class="form-control"/></div><input type="button" class="btnRemove btn-danger" value="Remove"/></div><br>');				});		// Removing event here  $('body').on('click','.btnRemove',function() {       $(this).closest('div').remove()  }); 		</script> </body> </html>

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