Apache log4php 是一个 PHP 的日志框架，类似 log4j。
Apache log4php 支持:
- Configuration through xml and properties file (same structure as log4j).
- File, RollingFile, DailyFile, Echo, Console, Mail, PDO, PHP error, Syslog or NT events and Socket appenders.
- Simple, TTCC, Pattern, Html and Xml Layouts.
- Nested (NDC) and Mapped (MDC) Diagnostic Contexts.
