Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of xml_parser_set_option(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /usr/home/www/fakepope.com/hosted/tree/xml.php on line 63

Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of xml_set_object(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /usr/home/www/fakepope.com/hosted/tree/xml.php on line 64

Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of xml_set_object(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /usr/home/www/fakepope.com/hosted/tree/xml.php on line 64

Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of xml_set_element_handler(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /usr/home/www/fakepope.com/hosted/tree/xml.php on line 65

Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of xml_set_character_data_handler(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /usr/home/www/fakepope.com/hosted/tree/xml.php on line 66

Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of xml_parser_free(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /usr/home/www/fakepope.com/hosted/tree/xml.php on line 68

Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of xml_parse(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /usr/home/www/fakepope.com/hosted/tree/xml.php on line 73

Warning: Call-time pass-by-reference has been deprecated; If you would like to pass it by reference, modify the declaration of xml_parse(). If you would like to enable call-time pass-by-reference, you can set allow_call_time_pass_reference to true in your INI file in /usr/home/www/fakepope.com/hosted/tree/xml.php on line 73
JpGraph Error: HTTP headers have already been sent.
Explanation:
HTTP headers have already been sent back to the browser indicating the data as text before the library got a chance to send it's image HTTP header to this browser. This makes it impossible for the library to send back image data to the browser (since that would be interpretated as text by the browser and show up as junk text).

Most likely you have some text in your script before the call to Graph::Stroke(). If this texts gets sent back to the browser the browser will assume that all data is plain text. Look for any text, even spaces and newlines, that might have been sent back to the browser.

For example it is a common mistake to leave a blank line before the opening "<?php".