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<?php
if(isset($_REQUEST['code']))
{
session_start();
if (strtolower($_REQUEST['code'])==$_SESSION['code'])
{
header('Content-type: text/html; charset=UTF8');
echo '<font color="#0000CC">輸入正確</font>';
}
else{
header('Content-type: text/html; charset=UTF8');
echo '<font color="#CC0000"><b>輸入錯誤</b></font>';
}
exit();
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>確認(rèn)驗證</title>
</head>
<body>
<form method="post" action="form.php">
<p>驗證碼圖片：<img id="captcha_img" border="1" src="captcha-2.php?r=<?php echo rand();?>" width="100" height="30">
</p>
<p>請輸入圖片的內(nèi)容：<input type="text" name="code" value=""/></p>
<p><input type="submit" value="提交" style="padding:6px 20px;"></p>
</form>
</body>
</html>?? ??:
<?php
if(isset($_REQUEST['code']))
{
session_start();
if (strtolower($_REQUEST['code'])==$_SESSION['code'])
{
header('Content-type: text/html; charset=UTF8');
echo '<font color="#0000CC">輸入正確</font>';
}
else{
header('Content-type: text/html; charset=UTF8');
echo '<font color="#CC0000"><b>輸入錯誤</b></font>';
}
exit();
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>確認(rèn)驗證</title>
</head>
<body>
<form method="post" action="form.php">
<p>驗證碼圖片：
<img src="captcha-2.php" alt="驗證碼，看不清楚，換一張"
onclick="this.src = this.src + '?' + new Date().getTime();" />
</p>
<p>請輸入圖片的內(nèi)容：<input type="text" name="code" value=""/></p>
<p><input type="submit" value="提交" style="padding:6px 20px;"></p>
</form>
</body>
</html>html ?? ?? ?? ???? ??? ??? ?? post submit? ?? form.php ??? ?????. ??? captcha-2.php? ????,
onclick="this.src = this.src + '?' + new Date().getTime()；
??? ??? ??? ??? ??? ???? ?????.
<?php
if(isset($_REQUEST['code']))
{
session_start();
if (strtolower($_REQUEST['code'])==$_SESSION['code'])
{
header('Content-type: text/html; charset=UTF8');
echo '<font color="#0000CC">輸入正確</font>';
}
else{
header('Content-type: text/html; charset=UTF8');
echo '<font color="#CC0000"><b>輸入錯誤</b></font>';
}
exit();
}php ??, SESSION? ?? ??? ?? ??? ???? ???? ?? ??? ???? ??? ??? ??? ???? ??? ??? ?? ?, ?? ??? ??? ???
?? ??? ???? ??? ???????.
