RE: [PHP] about $_post

Yes. $_POST[ID] Since there are no quotes around the variable name ID and no dollar sign in front of it, PHP will look for a constant named ID and if one is not found it will blow chow. $_POST['ID'] Should work find, assuming a variable named ID came from your form. However, I wouldn't get

Re: [PHP] about $_post

$_POST[ID] Since there are no quotes around the variable name ID and no dollar sign in front of it, PHP will look for a constant named ID and if one is not found it will blow chow. Depending on your error_reporting() level whether this warning is reported or not. Better to not use this