[root@qy caishenye]# tail -f /data/caishenye/sa_9_0.log

PHP Warning:  mkdir(): No such file or directory in /data/caishenye/sa_9_0.php on line 18

PHP Fatal error:  Call to undefined function mysql_pconnect() in /data/caishenye/sa_9_0.php on line 25

Interactive mode enabled

PHP Warning:  mkdir(): No such file or directory in /data/caishenye/sa_9_0.php on line 18

PHP Fatal error:  Call to undefined function mysql_pconnect() in /data/caishenye/sa_9_0.php on line 25

Interactive mode enabled

PHP Fatal error:  Call to undefined function mysql_pconnect() in /data/caishenye/sa_9_0.php on line 25

解决方法：

PDO, MYSQL, MYSQLI 都可以连接mysql，使用方式也有区别的
centos下php没有mysql扩展的话你可以直接yum install php-mysql;

本文出自 “漫漫长路” 博客，谢绝转载！

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PHP Fatal error: Call to undefined function mysql_pconnect()