How do radio buttons work in PHP?
How do radio buttons work in PHP?
Use the input with type=”radio” to create a radio button. Use the same name for multiple radio buttons to define a radio group. Get the value of a checked radio via the $_POST (or $_GET ) variable, depending on the request method.
How do I get the value of a radio button in PHP?
Get Selected Value of a Radio Button in PHP Use $_POST[] to get the value of the selected radio button. If the value is not chosen, we are showing a message to the user to choose the value from the group of radio buttons.
How show selected value in dropdown from database in PHP?
How to Insert Select Option Value in Database Using PHP & MySQL
- How to Store Dropdown Value in Database in PHP.
- Create SQL Database & Table.
- Connect PHP to MySQL.
- Create Input Field for Select Option.
- Insert Select Option in Database.
- Insert Select Option Value with another Input Value using PHP & MySQL.
How can you test if a checkbox is set in PHP?
The isset() function is an inbuilt function in PHP which checks whether a variable is set and is not NULL. This function also checks if a declared variable, array or array key has null value, if it does, isset() returns false, it returns true in all other possible cases.
How do I get the radio button in PHP?
Code language: HTML, XML (xml) Processing radio buttons in PHP When a form has a radio button with the radio_name, you can get the checked radio button by accessing either $_POST or $_GET array depending on the form method: $_POST if the form method is POST.
How do I get a radio button from a form?
Processing radio buttons in PHP When a form has a radio button with the radio_name, you can get the checked radio button by accessing either $_POST or $_GET array depending on the form method: $_POST if the form method is POST. $_GET in case the form method is GET.
What happens if no radio button is submitted in PHP?
As a result, they end up with nasty undefined index errors. Simply put: Your PHP code must be able to handle instances where no radio button was submitted. The user might not tick one of your radio buttons or worse: They might open up developer tools and remove the radio buttons altogether.
When to use radio buttons?
Radio buttons are best used when we have a list of two or more than two options, and the user must choose precisely one option. In the previous tutorial, we explored how to work with Checkboxes and Select Dropdown using PHP.