How to delete an entry in a MySQL Database from PHP

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PHP

<?php
		include '../forms/includes/connection.php';
		
		$sql = "SELECT FROM (booking_request) WHERE `booking_request_id`";
		$query = mysqli_query ($link,$sql);
		
		if (isset ($_POST['booking_request_id']))
	
	{	

		$id = $_POST['booking_request_id'];
		$sql = "DELETE from booking_requests where `booking_request_id` ='$id'";
		$query = mysqli_query ($link,$sql);
		
		
		if ($query)
	{
		header('location:whatsBooked.php');	
	}
	else
	{
		echo "Error: Record was not deleted" .mysql_error();
	}
	
	}
	
	else 
		
	echo " Function Error " .mysql_error();
?>

When the delete button is clicked Function Error, can anyone help me ?

Posted 11-May-15 1:52am

Ray-Rae

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Peter Leow · Answer 1 · 2015-05-11T02:05:00

It is redirected to the last else which echo "Function error" because the

if (isset ($_POST['booking_request_id']))

is false.
That means there is no post element of 'book_request_id' submitted from the form, check if there is any typo in the name of the corresponding html element (I guess it is an input type = "text" element) on the submitting form.