PHP - Manual: Constants

2025-11-04

Constants

**Database and Statement Attributes Table**
Attribute	Valid value(s)
PDO_ATTR_AUTOCOMMIT	BOOL TRUE if autocommit is set, FALSE otherwise. dbh->auto_commit contains value. Processed by PDO directly.
PDO_ATTR_PREFETCH	LONG Value of the prefetch size in drivers that support it.
PDO_ATTR_TIMEOUT	LONG How long to wait for a db operation before timing out.
PDO_ATTR_ERRMODE	LONG Processed and handled by PDO
PDO_ATTR_SERVER_VERSION	STRING The human-readable string representing the Server/Version this driver is currently connected to.
PDO_ATTR_CLIENT_VERSION	STRING The human-readable string representing the Client/Version this driver supports.
PDO_ATTR_SERVER_INFO	STRING The human-readable description of the Server.
PDO_ATTR_CONNECTION_STATUS	LONG Values not yet defined
PDO_ATTR_CASE	LONG Processed and handled by PDO.
PDO_ATTR_CURSOR_NAME	STRING String representing the name for a database cursor for use in where current in <name> SQL statements.
PDO_ATTR_CURSOR	LONG PDO_CURSOR_FWDONLY Forward only cursor PDO_CURSOR_SCROLL Scrollable cursor

The values for the attributes above are all defined in terms of the Zend API. The Zend API contains macros that can be used to convert a *zval to a value. These macros are defined in the Zend header file, zend_API.h in the Zend directory of your PHP build directory. Some of these attributes can be used with the statement attribute handlers such as the PDO_ATTR_CURSOR and PDO_ATTR_CURSOR_NAME. See the statement attribute handling functions for more information.

add a note

User Contributed Notes

There are no user contributed notes for this page.

官方地址：https://www.php.net/manual/en/internals2.pdo.constants.php

有任何技术问题请点击这里网站运营推广招聘

IT PHP 编程语言开发编程 Linux 科技 Elasticsearch HTML/CSS/XML 面试数据库网络 JAVA NoSQL C/C++ Golang 操作系统 Git 算法正则表达式 Redis 互联网 MySql 软件运维 JavaScript 国际架构设计 Mac OS Excel TCP/IP Windows Oracle Socket VR Vim MongoDB 运营 Python MemCache 商业硬件电子娱乐设计摄影 nginx WordPress 游戏 HTTP 团建数码电器 Docker

php7.3 使用 PDO_DM 扩展连接 DM8 中文乱码 PhpStorm中PHP注释的规范指南使用PHPWord将docx文件转换为html格式 docker-compose启动nginx与php-fpm laravel查看orm生成的sql PHPStorm ESC 会退出命令行 composer install参数 laravel orm中DB::insert方法导致内存泄漏的问题解决方法 php7 安装fileinfo扩展 adodb手册 ADORecordSet对象利用php soap实现web service 常用的php ADODB使用方法集锦 ADOConnection 公用函数 adodb连接mysql多个数据库的问题 php xml formatOuput无效的解决办法 Composer的Packagist资源 [鸟哥]PHP_INT_MIN 和 -9223372036854775808 php上周一、本周一、下周一日期 mysql面试题

略微加速

PHP官方手册 - 互联网笔记

Constants

User Contributed Notes