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<?php
$con = mysqli_connect("localhost", "root", "", "blog") or die();
 $id = $_GET['id'];
 mysqli_query($con, "DELETE FROM post WHERE id='$id' ");
 mysqli_query($con, "DELETE FROM comment WHERE postid='$id' ");
 echo "<script>window.location.href='javascript:history.go(-1)'</script>";
 ?>
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