Using Php to modify webpages

[mhodge87]

How would one go about using php to modify existing webpages .

Basically lets assume I had

bob.html

Is there a way that I can call a php script to open bob.html and display all the source code within that file?

Then IF there is, one could theoretically edit it and then have php output the new html in the file?

Just curious as to if it could be done.

[NogDog]

<?php
$html = file_get_contents('path/to/file.html');
/*
   Use str_replace(), preg_replace(), etc. to edit contents of $html
*/
echo $html;
?>