php 直接呼叫svn命令

程式如下php_svn.php

system("/usr/bin/svn co --username xx --password xx --no-auth-cache      application/config/");
?>

如果出現如下錯誤，提示

1、[15-Jan-2014 10:47:47] WARNING: [pool www] child 30635 said into stderr: "svn: Can't make directory 'application/config': Permission denied"

①表示當前php執行所在目錄許可權不足，可以授予777許可權

2、認證錯誤，解決方法,新增--no-auth-cache

[15-Jan-2014 11:15:43] WARNING: [pool www] child 30634 said into stderr: ""

[15-Jan-2014 11:15:43] WARNING: [pool www] child 30634 said into stderr: "can only be stored to disk unencrypted!  You are advised to configure"

[15-Jan-2014 11:15:43] WARNING: [pool www] child 30634 said into stderr: "your system so that Subversion can store passwords encrypted, if"

[15-Jan-2014 11:15:43] WARNING: [pool www] child 30634 said into stderr: "possible.  See the documentation for details."

[15-Jan-2014 11:15:43] WARNING: [pool www] child 30634 said into stderr: ""

[15-Jan-2014 11:15:43] WARNING: [pool www] child 30634 said into stderr: "You can avoid future appearances of this warning by setting the value"

[15-Jan-2014 11:15:43] WARNING: [pool www] child 30634 said into stderr: "of the 'store-plaintext-passwords' option to either 'yes' or 'no' in"

[15-Jan-2014 11:15:43] WARNING: [pool www] child 30634 said into stderr: "'/.subversion/servers'."

[15-Jan-2014 11:15:43] WARNING: [pool www] child 30634 said into stderr: "-----------------------------------------------------------------------"

[15-Jan-2014 11:15:43] WARNING: [pool www] child 30634 said into stderr: "Store password unencrypted (yes/no)? "