What is the significance of naming a select element with [] in PHP?

When naming a select element with [], it signifies that the select element will be treated as an array in PHP. This is useful when dealing with multiple select elements or when submitting multiple values for a single select element. By naming the select element with [], PHP will automatically create an array of the selected values when the form is submitted. 

<select name="example[]" multiple>
  <option value="1">Option 1</option>
  <option value="2">Option 2</option>
  <option value="3">Option 3</option>
</select>

Keywords

PHP select element naming convention array form submission

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