How can PHP scripts be modified to prevent the display of PHP source code when searching for specific words?

To prevent the display of PHP source code when searching for specific words, you can use the `strpos` function to check if the search term is found in the PHP script before displaying the content. If the search term is found, you can choose to display a message instead of the actual code.

<?php
$script = file_get_contents(__FILE__);
$searchTerm = 'specific_word';

if (strpos($script, $searchTerm) !== false) {
    echo "Search term not found in this script.";
} else {
    // Display the PHP script content
    highlight_file(__FILE__);
}
?>