如何在没有pars的情况下回显php文件？

Question

how to read a php file and echo it in a html file?
i try to use readfile() , file() file_get_content() to read a php file.
but when i echo file_string its parsed and then show.
how i can prevent to pars stirng var that included php codes.

here my code:

<?php
$path = '..../ex.php';
$source = fopen($path , "r");
echo fread($source,filesize($path ));
fclose($source);
?>

how to echo $source without compiled or parsed.

Answer 1

With this function

<?php
    echo htmlspecialchars($text);
?>

php.net/htmlspecialchars