Facebook preg_match php问题

Question

I need to extract the xhpc_composerid and targetid values

I used php to do so

it is of format

\" name=\"xhpc_composerid\" value=\"u195493_3\" \/>\u003cinput type=\"hidden\" autocomplete=\"off\" name=\"xhpc_targetid\" value=\"599498849\" \/>\u003cinput type=\"hidden\" autocomplete=\"off\" name=\"xhpc_context\" value=\

i used the regular expression

preg_match_all("/\\\"xhpc_composerid\\\" value=\\\"(.*?)\\\"/",$proPage,$xhpc_composerid);

where proPage contains the page data but dont know why i am not getting any results in $xhpc_composerid what am i doing wrong?

Answer 1

This regex worked for me on you example:

\\"xhpc_composerid\\" value=\\"(.+?)\\"

But generally you should use html parser to get data from html. Because what if name and value attributes become reversed or some other attribute gets in the middle of them?