The tidy extension can also report to you a list of problems with the
document, identifying them by the offending row and column. These messages
are stored in an error buffer which can be retrieved using tidy_get_error_buffer():
Error buffer from http://www.php.net/
line 143 column 67 - Warning: unescaped & or unknown entity "&r2"
line 5 column 2 - Warning: <link> inserting "type" attribute
line 6 column 2 - Warning: <link> inserting "type" attribute
line 15 column 1 - Warning: <table> lacks "summary" attribute
line 50 column 1 - Warning: <table> lacks "summary" attribute
line 53 column 4 - Warning: <table> lacks "summary" attribute
line 112 column 3 - Warning: <td> proprietary attribute "background"
line 114 column 4 - Warning: <table> lacks "summary" attribute
line 366 column 24 - Warning: <td> proprietary attribute "background"
line 368 column 2 - Warning: <table> lacks "summary" attribute
line 455 column 1 - Warning: <table> lacks "summary" attribute
line 464 column 1 - Warning: <table> lacks "summary" attribute
Tidy can also do a more in-depth analysis of the provided document by using the
tidy_diagnose() function (which adds the following lines to the error buffer above):
Analysis of http://www.php.net/
tidy_parse_file("http://www.php.net/");
tidy_diagnose();
echo tidy_get_error_buffer();
... see above example for the missing portion ...
Info: Doctype given is "-//W3C//DTD HTML 4.01 Transitional//EN"
Info: Document content looks like HTML Proprietary
12 warnings, 0 errors were found!
