Tidying up your HTML with PHP

Not only can tidy fix things, it can tell you what went wrong:

Tidy has a great markup parser which intelligently corrects a wide range of errors:

Displaying the error buffer


<?php
    $tidy = tidy_parse_file("intro2_ex1.html");
    tidy_clean_repair($tidy);
    echo tidy_get_error_buffer($tidy);
?>

Result

line 1 column 1 - Warning: missing <!DOCTYPE> declaration
line 1 column 11 - Warning: replacing unexpected i by </i>
line 1 column 27 - Warning: replacing unexpected u by </u>
line 1 column 49 - Warning: discarding unexpected </b>
line 1 column 1 - Warning: inserting missing 'title' element