一用session_start()就出错，

[cshua]

我一用session_start()就出错。
<?php
session_start();
?>
就出现下面的问题。
Warning: session_start(): open(/tmp\sess_69d9a23766b0f48d8fcec922eba35ec7, O_RDWR) failed: No such file or directory (2) in F:\web\lesson\zhuxue\se.php on line 2

Warning: session_start(): Cannot send session cookie - headers already sent by (output started at F:\web\lesson\zhuxue\se.php:2) in F:\web\lesson\zhuxue\se.php on line 2

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at F:\web\lesson\zhuxue\se.php:2) in F:\web\lesson\zhuxue\se.php on line 2

Warning: Unknown(): open(/tmp\sess_69d9a23766b0f48d8fcec922eba35ec7, O_RDWR) failed: No such file or directory (2) in Unknown on line 0

Warning: Unknown(): Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp) in Unknown on line 0
求各位高手解答，在线

[shishirui]

你加上这个

session_save_path('tmp');

然后建立一个tmp文件夹

[cshua]

没用，
还是有错
Warning: Unknown(): Failed to write session data (files). Please verify that the current setting of session.save_path is correct (f:/web/php/tmp) in Unknown on line 0

[zairwolfi]

建立一个tmp文件夹

[cshua]

我建了一个f:/web/php/tmp
还是说有错

[hflsj]

如果你的web目录在d:的某个目录,那就在d:建立d:\tmp目录 如果在E盘就要在E建立E:\tmp目录

[shishirui]

在和你的那个PHP文件的同一目录下建一个tmp文件夹

[cshua]

成功，谢谢

[cshua]

不出错，出现空白页是正常的，因为没有输出

[laolang718]

我按上面的方法做了以后，但不出错，但出现空白页，是怎么回事呀