u can assign $_POST[] variables urself; this means form need not be manually submitted. If u use GET, you need just click a url loaded with values u assign at run-time. Just, you need assign POST/GET variables; u don't need type data into forms. This way, u c, u can fill 100 records 4some Web site in no time!; hence is now, a convention of 'dynamic image/non-image codes' which can't be read by malacious script ( robots ).:D
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