$_POST spaces converted in underscores

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迷失自我 2021-01-12 00:15

I have an HTML dropdown menu that looks like this

 becomes $_REQUEST["a_b"]. 




The full list of field-name characters that PHP converts to _ (underscore) is the following (not just dot):


chr(32)   (space)
chr(46) . (dot)
chr(91) [ (open square bracket)
chr(128) - chr(159) (various)


If both an open and a closing square bracket are present, they are not converted but the $_POST element becomes an array element. 





will become:

$_POST['hor_se'];
$_POST['hor']['se'];


::Reference

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