错误处理和日志记录

• 简介
• 安装/配置
  • 需求
  • 安装
  • 运行时配置
  • 资源类型
• 预定义常量
• 范例
• 错误处理 函数
  • debug_backtrace — Generates a backtrace
  • debug_print_backtrace — Prints a backtrace
  • error_get_last — Get the last occurred error
  • error_log — Send an error message somewhere
  • error_reporting — Sets which PHP errors are reported
  • restore_error_handler — Restores the previous error handler function
  • restore_exception_handler — Restores the previously defined exception handler function
  • set_error_handler — Sets a user-defined error handler function
  • set_exception_handler — Sets a user-defined exception handler function
  • trigger_error — Generates a user-level error/warning/notice message
  • user_error — Alias of trigger_error