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Asked:2020-12-16 03:48:01 +0000 UTC2020-12-16 03:48:01 +0000 UTC

设置会话时间（保存特定时间的文本颜色）

  • 772

有文件.html

<form method="post" action="file.php">
<p>
<select size="5" name="color">
<label>Цвета</label>
<option value="red">Красный</option>
<option value="blue">Синий</option>
<option value="yellow">Жёлтый</option>
<option value="brown">Коричневый</option>
<option value="green">Зелёный</option>
</select>
</p>
<p><input type="submit" name="submit" value="Выбрать"></p>
</form>

和文件.php

<?php
session_start();

if (isset($_POST['submit'])){

   if (!empty($_POST['color'])){

    $_SESSION['color'] = $_POST['color'];  
  }
}
$color = $_SESSION['color'];


?>
<div>
<font color="<?php echo $color?>">
Some text here.....
</font>
</div>

提交颜色后如何让文本颜色在浏览器中只持续1分钟？

php

2 个回答

  1. Best Answer

    为此使用 cookie。不需要会话。

    • 0 
  2. session_start();
if (isset($_POST['submit'])) {
  if (!empty($_POST['color'])) {
    $_SESSION['post_color'] = array(
      'color' => $_POST['color'],
      'time' => time()
    );
  }
} else if (
  isset($_SESSION['post_color']) &&
  $_SESSION['post_color']['time'] + 60 > time()
)
  $color = $_SESSION['post_color']['color'];
else
  $color = $_SESSION['color'];
    • 0

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