Web site design and hosting - BRINGING FORMS TO LIFE Figure 5-8. The feedback
BRINGING FORMS TO LIFE Figure 5-8. The feedback form with examples of each type of form element PHP Solution 5-7: Getting data from radio button groups Radio button groups allow you to pick only one value. This makes it easy to retrieve the selected one. 1. All buttons in the same group must share the same name attribute, so the $_POST array contains the value attribute of whichever radio button is selected. If no button is selected, the radio button group s $_POST array element remains unset. This is different from the behavior of text input fields, which are always included in the $_POST array, even if they contain nothing. 143
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