[PHP]实用函数8
//建立dBase资料表
int dBase_create(string filename,array fields)
//打开dBase资料表
int dbase_open(string filename,int flags)
//关闭dBase资料表
boolean dbase_close(int dbase_identifier)
//清理dBase资料表
bool dbase_pack(int dbase_identifier)
//加入记录到dBase资料表
bool dbase_add_record(int dbase_identifier,array record)
//删除dBase资料表的记录
bool dbase_delete_record(int dbase_identifier,int record)
//取得dBase资料表的记录
array dbase_get_record(int dbase_identifier,int record)
//取得dBase资料表的字段数
int dbase_numfields(int dbase_identifier)
//取得dBase资料表的记录数
int_dbase_numrecords(int dbase_identifier)
//打开目录并返回一个 dir_handle
int opendir(string path)
//关闭由 dir_handle 标志的目录连接
void closedir(int dir_handle)
//更改当前工作目录
int chdir(string directory)
//获得当前工作目录
string getcwd(void)
//把 dir_handle 回绕到开头
vod rewinddir(int dir_handle)
//从 dir_handle 中逐个读取目录
string readdir(int dir_handle)
//获得 path 所在的文件系统的空闲磁盘空间,以字节计
double diskfreespace(string directory)
//改变文件的属主
bool chown(string filename,mixed user)
//改变文件的组属性
bool chgrp(string filename,mixed group)
//更改文件属性
bool chmdo(string filename,int mode)
//设置文件的修改时间
bool touch(string filename,int [time])
//获得文件访问权限(以八进制形式返回)
int fileperms(string filename)
//获得文件的 i-node(索引节点)信息
int filenode(string filename)
//获得文件大小
int filesize(string filename)
//获得文件的 UID 值
int fileowner(string filename)
//获得文件的 GID 值
int filegroup(string filename)
//获得文件类型,可能的返回类型有 fifo、char、dir、block、link、file 及 unknown 等
string filetype(string filename)
//如果文件符合 xxx 指定的属性,则返回 true。xxx 是 dir、executable、file、link、readable、writeable 等
bool is_xxx(string filename)

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