Php-PHP loading module failed: PHPStartup: inUnknownonline0

In the php. ini file: extension_dir & quot; D: ZendZendServerlibphpext & quot;... extensionphp_saprfc.dll restart APACHE and enter a WARNING with no prompt. Php. log file Display: 14-Jul-201515: 38: 53 AsiaShanghai] PHPWarning: PHPStartup: inUnknownonline0 [14-Jul-201515: 38: 57 AsiaShang php

In the php. ini file:
Extension_dir = "D: \ Zend \ ZendServer \ lib \ phpext"
...
Extension = php_saprfc.dll

Restart APACHE and enter a WARNING with no prompt. The php. log file is displayed as follows:
14-Jul-2015 15:38:53 Asia/Shanghai] PHP Warning: PHP Startup: in Unknown on line 0
[14-Jul-2015 15:38:57 Asia/Shanghai] PHP Warning: PHP Startup: in Unknown on line 0

The path is changed to the absolute path. After several experiments, this line of extension = php_saprfc.dll is blocked without warning. Remove the comment and there will be warning. How can we load the DLL ??