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PHP 8.4.0 RC4 available for testing
Getting Started
Introduction
A simple tutorial
Language Reference
Basic syntax
Types
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Functions
Classes and Objects
Namespaces
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Errors
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References Explained
Predefined Variables
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Security
Introduction
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Installed as CGI binary
Installed as an Apache module
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Function Reference
Affecting PHP's Behaviour
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rrd_create »
« OOP PECL/rrd example
PHP 手册
函数参考
其它服务
RRD
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RRD 函数
目录
rrd_create
— 创建 rrd 数据库文件
rrd_error
— 获取最新的错误信息
rrd_fetch
— 获取图表数据数组
rrd_first
— 从 rrd 文件中获取第一个样本的时间戳
rrd_graph
— 从数据创建图像
rrd_info
— 获取 rrd 文件有关信息
rrd_last
— 获取最后一个样本的 Unix 时间戳
rrd_lastupdate
— 获取有关上次更新数据的信息
rrd_restore
— 从 XML 转储中恢复 RRD 文件
rrd_tune
— 调整 RRD 数据库文件头选项
rrd_update
— 更新 RRD 数据库
rrd_version
— 获取底层 rrdtool 库的相关信息
rrd_xport
— 导出 RRD 数据库的相关信息
rrdc_disconnect
— 关闭所有未完成的 rrd 缓存守护进程连接
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