php - Need information about file safety -


hello stackoverflow community! i've got question website security! i'm new in creating tvs want ask include file stuff. let's say, i've got index.php file has: include_once 'style/header.php'; , file header.php contains:

<html>     <head>         <title>some title!</title>         <meta charset="utf-8">         <meta name="viewport" content="width=device-width, initial-scale=1">         <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>         <link href="css/style.css" rel="stylesheet" type="text/css">         <link rel="shortcut icon" type="image/x-icon" href="images/favicon.ico" />     </head>     <body>

so if 1 try directly access header.php see html tags. how can block access included file or encrypt them? or maby there other stuff programmers do?

you can insert line of code @ start of header file

<?php if(strtolower(__file__) == strtolower(realpath(".".$_server['script_name']))) { die("direct access not allowed."); } ?>

this not allow direct access file allow including.


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