php根据用户输入的计算公式计算结果
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发布时间:2022-10-18 22:45
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热心网友
时间:2024-10-21 15:44
<?php
$user_name = isset($_REQUEST['user_name']) ? trim($_REQUEST['user_name']) : '';
$where = "";
if(!empty($user_name)){
$where .= " and `user_name` = '{$user_name}'";
}
$sql = "select * from `user` where 1 = 1 ". $where;
?>
<input type="text" name="user_name" value="<?php echo $user_name; ?>" />
热心网友
时间:2024-10-21 15:45
我来回收问题啦