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Showing content with the highest reputation on 07/26/2020 in all areas
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If it helps, note that that a <button> element can have a value attribute independent of its label <?php $option = $_GET['option'] ?? ''; if ($option) echo "You chose $option<hr>"; ?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Sample</title> </head> <body> <form> Select an option <button name="option" value="1">Choose me</button> <button name="option" value="2">Choose me</button> <button name="option" value="3">No, Choose me</button> <button name="option" value="4">No, Choose me</button> <button name="option" value="5">No, Choose me</button> </form> </body> </html>2 points
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What if I told you that you don't need a loop?1 point
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Specify the method in your form tag (method="post").1 point
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Afaik, this is no longer an issue in any modern browser. This was an issue back the the old days, but was only an issue via implicit submit (via Enter in a text field). If you hit enter in a text field to submit the form some browsers would not include the submit button name/value where as others would. I forget which browser did which action. Fun fact, google actually used to detect if the button name was submitted and show a "Tip: You can just hit enter to search" bit on the results page. I believe old IE also had issues with <button> specifically, ignoring the value attribute and passing it's label content instead at times. As such, it was best to give the buttons different names and check for that instead of the values. These days however, there's no problem with just providing several buttons with the same name and different values. The browser will submit the value of the button you clicked on and you can detect that in your script just fine. If your form has other fields, then what happens on the implicit submit is now clearly defined in the spec.1 point
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True. This would solve the issue. I want to say (though to be honest I'm not entirely confident in my memory so don't quote me) that some browsers have issues passing button and submit element attributes on submission? Like if you name your submit button and then check for that index in the $_POST array being set it doesn't always catch it - I want to say it's mostly IE, which probably doesn't really matter any more anyway. @SaranacLake The reason your third form results are off is that both the buttons have the same name, and they're both submitted with the form. So the value of `which_choice_did_i_make` is overwritten and will always be 'Form4_Input2'. The thing about it is, if you're using AJAX and JavaScript you can easily use one form - the onClick event tells the JS event handler which button was clicked, that information is put into the data array and passed to the PHP script. No hidden fields, one form, no page refresh necessary. However, the way you're doing it, there's no way the hidden field can tell the PHP script which button was clicked - all the data is always submitted. Just the act of clicking an HTML button doesn't trigger any special actions that will bind a field value to a field (obviously this can be done with JavaScript, but it won't happen in plain old HTML). Assuming my memory is as bad as it seems to be these days, Barand's suggestion is the way to go for you - check the value of the button element name in $_POST and go from there. This allows you to have one form, no hidden fields, with mandatory page refresh.1 point
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The client must send the slash at a minimum. Not submitting anything is a gross violation of the HTTP standard. "Forging a request" is as simple as 1. Typing the request out into some editor, then copying it all 2. Using telnet to connect to the web server 3. Pasting the request, remembering to include two newlines at the end if you're sending a request without a body The copy/paste is because web servers want requests quickly and you won't be able to type it out yourself fast enough before they close the connection. Forge a request that starts with "GET HTTP/1.1" (ie, the first line without the resource URI) to any website and you'll get a 400. Should not. But search engines are generally smart enough to recognize the difference between a site's branding H1 and some sidebar's H1 and the content H1. So the guideline is more about not using multiple H1s for a distinct section of the page. Google basically picks what is most popular, not necessarily what is correct. But if you have multiple URLs to the same page with the same content then you will be penalized for it. So deal with it sooner rather than later. Trailing slashes on files are dumb. Fortunately it's rare to see anyone do that. Trailing slashes on everything else is up to personal/business preference. (Personally, I don't like slashes on pages either. With exceptions.)1 point
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Most common programming languages use ^ for exclusive or. In PHP's case, ** is actually a relatively recent addition.1 point
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