PHP Warning: fwrite() expects parameter 1 to be resource, boolean given in

CENTOS 6 + PHP5要寫入檔案時錯誤
 PHP Warning:  fwrite() expects parameter 1 to be resource, boolean given in

原因是SELINUX要設定開放PHP連接DB
/usr/sbin/setsebool -P allow_url_fopen = 1

Can't connect to MySQL server on 'xxx.xxx.xxx.xxx' (13)

CENTOS 6

PHP 連接mySQL出現Can't connect to MySQL server on 'xxx.xxx.xxx.xxx' (13)

原因是SELINUX要設定開放PHP連接DB
/usr/sbin/setsebool -P httpd_can_network_connect_db=1