使用PHP从文件中删除多行

Question

Let's say I have a file called 'file.php' in which is the following code:

<?php
$var = 'something';
echo '<p>' . $var . '</p>';
?>

Is it possible to delete these lines with PHP, without altering the rest of the file?

Answer 1

Once these lines have been output (sent to the browser) you will not be able to "delete" them solely using PHP.

You'll need to use a client-side scripting language such as JavaScript to get a handle on the <p> tag for example and then either hide it or remove it from the DOM.