pdo常用函数 无 //print_r(pdo_drivers());header('Content-Type:text/html; charset=utf-8'); error_reporting(E_ALL^E_NOTICE);try{$pdo_conn=new PDO('mysql:host=localhost;dbname=study_test','root','');}catch(PDOException $e){echo 'conn error'.$e-
pdo 常用函数
//print_r(pdo_drivers()); header('Content-Type:text/html; charset=utf-8'); error_reporting(E_ALL^E_NOTICE); try{ $pdo_conn=new PDO('mysql:host=localhost;dbname=study_test','root',''); }catch(PDOException $e){ echo 'conn error'.$e->getMessage(); } $pdo_conn->exec('set names utf8;'); // $query='insert into pdo_test(name,phone)values("小明","123456789")'; // $pdo_conn->exec($query); $query_s='select * from pdo_test'; $result=$pdo_conn->query($query_s); echo '返回结果集中的总列数--'.$result->columnCount().'<br>'; while($row=$result->fetch(PDO::FETCH_ASSOC)) { echo "姓名:{$row[name]},电话:{$row[phone]} <br>"; } echo "-------------<br>"; $rows=$result->fetchAll(); foreach($rows as $val) { echo "姓名:{$val[name]}, 电话:{$val[phone]}"; } echo $pdo_conn->errorCode(); // pdo 事务 /** 1.开始事务 PDO::beginTransaction() 禁用自动提交模式,也就是说执行commit()方法前 任何数据库修改都不会生效 2.提交事务 PDO::commit() 提交事务 3.回滚事务 PDO::rollback()取消自执行beginTransaction()以来所做的所有数据库修改 */

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

Atom editor mac version download
The most popular open source editor

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

WebStorm Mac version
Useful JavaScript development tools