Question

I am using PHP Simple HTML DOM Parser and it is consuming a lot of memory (discovered from using memory_get_usage)! I tried unsetting it but it doesn’t do anything.

Answer 1

See http://simplehtmldom.sourceforge.net/manual_faq.htm

Q: This script is leaking memory seriously… After it finished running, it’s not cleaning up dom object properly from memory..

A: Due to php5 circular references memory leak, after creating DOM object, you must call dom->clear() to free memory if call file_get_dom() more then once.

Example:

$html = file_get_html(...);  // do something...  
$html->clear(); 
unset($html);

This happens a lot when you are using this library in a loop.