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By default you cannot write a print_r, var_dump, or debug_print_backtrace to a log in PHP. When you call these methods, PHP immediately echo’s out the data. Instead you must use PHPs ob_start which instructs PHP to not output anything from the script. To access the contents of the buffer use ob_get_contents and to let PHP know its okay to output from your script once again call ob_end_clean.

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	ob_start();
	var_dump(debug_backtrace());
	$backtrace=ob_get_contents();
	ob_end_clean();

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4. using php debug_print_backtrace for debugging code
5. form checkboxes in php array and storing variables in url string

Tags: php

This entry was posted on Tuesday, March 17th, 2009 at 11:49 pm and is filed under Programming. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.