您收到OCI8扩展程序的启动错误，表明您使用的PHP版本不支持dll.您需要使用正确的选项之一-对于PHP 5.6.x-是其中一种:

You are getting startup errors for the OCI8 extension indicating that you are using an unsupported dll for your php version. You need to use the correct one, which - for PHP 5.6.x - is one of these:

• http://windows.php.net/downloads/pecl/releases/oci8/2.0.8/

您需要使用与您的体系结构(x86或x64)，编译器(vc 9、11、14)和线程安全(ts)或非线程安全(nts)php版本相匹配的版本，例如如果您在x86上运行使用vc11编译的线程安全的PHP 5.6.24，则应使用

You need to take the one that matches your architecture (x86 or x64), compiler (vc 9, 11, 14) and thread-safe (ts) or non-thread-safe (nts) php version, e.g. if you are running a thread-safe PHP 5.6.24 compiled with vc11 on an x86, you'd use

php_oci8-2.0.8-5.6-ts-vc11-x86.zip
-------- ----- --- -- ---- --- ---
^        ^     ^   ^  ^    ^   ^
|        |     |   |  |    |   \_____ extension
|        |     |   |  |    \_________ architecture
|        |     |   |  \______________ compiler
|        |     |   \_________________ thread-safety mode
|        |     \_____________________ php version
|        \___________________________ extension version
\____________________________________ extension name

如果没有与您的PHP匹配的下载文件，则说明该文件不存在，因此您需要自己进行编译.有关更多信息，请参见 http://windows.php.net

If there is no download matching your PHP, then it does not exist and you need to compile it yourself. More info at http://windows.php.net

附带说明:除上述内容外，您一次只能使用一个oci扩展名.您同时拥有了(php_oci8.dll和php_oci8_11g.dll).确保删除不需要的.

On a side note: in addition to the above, you can only use one oci extension at a time. You got both (php_oci8.dll and php_oci8_11g.dll). Make sure to remove the one you don't need.