php打开文件失败

1、在linux环境下用PHP脚本fopen打开文件“t1.txt”，路径写成“/test/t1.txt”时出错

Warning: fopen(/test/t1.txt) [function.fopen]: failed to open stream: No such file or directory in /var/www/test/5-3.php on line 24

Unable to open file!
原始代码如下：

$file = fopen("/test/t1.txt", "r") or exit("Unable to open file!");
 //Output a line of the file until the end is reached
 while(!feof($file))
   {
   echo fgets($file). "<br />";
   }
 fclose($file);

 

2、解决方法

我查了一些资料发现是路径不完整造成的，写成 /var/www/test/t1.txt 就可以了。

修改后的代码：

$file = fopen("/var/www/test/t1.txt", "r") or exit("Unable to open file!");
 //Output a line of the file until the end is reached
 while(!feof($file))
   {
   echo fgets($file). "<br />";
   }
 fclose($file);