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4.25作业
Gill的博客
Original
601 people have browsed it

实例

<?php

//连接参数
$db_host = '127.0.0.1';
$db_user = 'root';
$db_pass = 'root';
$db_name = 'test';
$db_char = 'utf8';

//创建连接
$db = @new mysqli($db_host,$db_user,$db_pass,$db_name);

//检测连接
if($db->connect_errno){
    exit($db->connect_error.$db->connect_errno);
}

//设置默认字符集
$db->set_charset($db_char);

//sql语句
$sql_ins = "INSERT IGNORE user SET USER_NAME = ?,USER_AGE = ?,USER_PRO = ?";
$sql_del = "DELETE from user WHERE USER_ID = ?";
$sql_upd = "UPDATE  user SET USER_PRO = ? WHERE USER_NAME = ? ";

//创建stmt
$stmt = $db->stmt_init();

//检测stmt
//if($stmt->prepare($sql_ins)){
//     $stmt->bind_param('sis',$name,$age,$pro);
//     $name = '瓦莉拉';
//     $age = 130;
//     $pro = '盗贼';
//     $stmt->execute();
//}else {
//    echo $stmt->errno.$stmt->error;
//}
//if($stmt->prepare($sql_del)){
//    $stmt->bind_param('i',$id);
//    $id = 12;
//    $stmt->execute();
//}else {
//    echo $stmt->errno.$stmt->error;
//}
if($stmt->prepare($sql_upd)){
     $stmt->bind_param('ss',$pro,$name);
     $name = '瓦莉拉';
     $pro = '潜行者';
     $stmt->execute();
}else {
    echo $stmt->errno.$stmt->error;
}

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实例

<?php
//创建pdo对象
$pdo = @new PDO('mysql:host=127.0.0.1;dbname=test','root','root');
$stmt = $pdo->prepare("DELETE  FROM user  WHERE user_id=:id");
$stmt->execute(['id'=>14]);

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Correction status:Uncorrected

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