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  1. Okay this is a newbie question but I know how it works but I just want to know how. So this code for example: if(isset($_POST['submit'])){ // do some stuff } else { // do some else stuff } This if statement will only do its code block if submit button is clicked or in nerds language if $_POST['submit'] is set. So thats means that value of that submit button is NULL before clicking, but when we click that submit button we are giving it a value? For example <input type="submit" name="submit" value="someAwesomeValue"> if I click this button its value will be 'someAwesomeValue' which means I set $_POST['submit'] value to 'someAwesomeValue' or in other words $_POST['submit'] = 'someAwesomeValue' Thanks!
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