Trackbacks in PHP
问题 I'm writing a custom blog engine and would like to have trackbacks similar to Wordpress. I could look at the Wordpress source, but I'd really prefer a tutorial of some sort and so far I haven't been able to find one. Are there any good tutorials for implementing trackbacks or pingbacks in PHP5? 回答1: Trackbacks are fine, but they're very prone to spam, since there's no verification of their origin. You use a simple discovery method to find the trackpack entrypoint; look for RDF in the target