I'm trying to choos开发者_运维问答e a selection from a drop down list and submit the value with POST, set the value to a variable when the page reloads, and set the drop down list to the previously selected value but it is not working. Here is my code:
<?php
$BoardSide = isset( $_POST['BoardSide'] ) ? $_POST['BoardSide'] : 0 ;
?>
<html>
<body>
<form method="POST" action="?" name="inputform1">
<select name="BoardSide" style="width:80px;">
<option value="0" <?php $BoardSide == 0 ? 'selected' : '' ?> >None</option>
<option value="1" <?php $BoardSide == 1 ? 'selected' : '' ?> >Top</option>
<option value="2" <?php $BoardSide == 2 ? 'selected' : '' ?> >Bottom</option>
</select>
</form>
</body>
</html>
Do you mean:
<?php echo $BoardSide == 0 ? 'selected' : '' ?>
Without that echoyou are not outputting anything there it seems ?
Did you check the HTML generated source ? Seems to me you don't "echo" anything back.
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......
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