用的ubuntu，不知道如何写如下的路径
$dsn='uri:file///opt/lampp/htdocs/dsn.txt';
Warning: PDO::__construct(file///opt/lampp/htdocs/dsn.txt): failed to open stream: No such file or directory in /opt/lampp/htdocs/test.php on line 7
invalid data source URI
$dsn = 'uri:file://D:\Users\...\dpo_sql\dsn.txt';
在网上查到写成如下：
$dsn='uri:file:////opt/lampp/htdocs/dsn.txt';
只是写成这样，会出现如下
could not find driver
呵呵