grab a variable value from external webpage for processing?

grab a variable value from external webpage for processing?

References

Reference NO 1

http://stackoverflow.com/questions/13648224/grab-a-variable-value-from-external-webpage-for-processing

Reference NO 2

http://www.learningprocessing.com/tutorials/external-data-into-processing-2/

Reference NO 3

http://www.ibm.com/developerworks/library/os-php-readfiles/

Reference NO 4

http://www.howtogeek.com/howto/programming/php-get-the-contents-of-a-web-page-rss-feed-or-xml-file-into-a-string-variable/

Reference NO 5

http://php.net/manual/en/function.exec.php

Reference NO 6

http://www.xul.fr/javascript/parameters.html

Reference NO 7

http://bytes.com/topic/php/insights/664241-using-html-forms-pass-data-php

Reference NO 8

http://www.4serendipity.com/form/