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How to make the HTML drop-down menu retain the selected value after submission and not return to the default value
- php中世界最好的语言Original
- 2018-01-31 09:42:392753browse
This time I will show you how to make the html drop-down menuretain the selected value after submission and not return to the default value. After the html drop-down menu is submitted, retain the selected value and not return to the default valueNotes What are they? The following is a practical case. Let’s take a look.
The code is as follows:<html> <body> <?php // 获取select值 $select_value = isset($_GET['select']) ? $_GET['select'] : ''; ?> <form action="?"> <select name="select"> <option value="">default</option> <option value="option1" <?php // 如果在上面获取的值和这个option里的值一样， // 就打印selected，让这个option默认被选中 echo $select_value == 'option1' ? 'selected' : '' ?>>option1</option> </select> <input type="submit" value="submit" /> </form> </body> </html>I believe you have mastered the methods after reading these cases. For more exciting information, please pay attention to other related articles on the php Chinese website! Related reading:
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