PHP简单处理表单输入的特殊字符的方法

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Release： 2016-05-25 17:16:04

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这篇文章主要介绍了PHP简单处理表单输入的特殊字符的方法,涉及PHP中trim(),strip_tags(),htmlspecialchars()及addslashes()等函数的使用技巧,需要的朋友可以参考下

本文实例讲述了PHP简单处理表单输入的特殊字符的方法。分享给大家供大家参考，具体如下：

<html>
<body>
  <?php
   if ($_POST[&#39;submitted&#39;] == "yes"){
    $yourname = $_POST[&#39;yourname&#39;];
    $yourname = trim ($yourname);
    $yourname = strip_tags ($yourname);
    $yourname = htmlspecialchars ($yourname);
    $yourname = addslashes ($yourname);
    echo $yourname . "<br />";
    ?><a href="index.php">Try Again</a><?php
   }
   if ($_POST[&#39;submitted&#39;] != "yes"){
    ?>
    <form action="index.php" method="post">
     <p>Example:</p>
     <input type="hidden" name="submitted" value="yes" />
     Your Name: <input type="text" name="yourname" maxlength="150" /><br />
     <input type="submit" value="Submit" style="margin-top: 10px;" />
    </form>
    <?php
   }
  ?>
 </p>
</body>
</html>

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