数组{name=张三，age=10岁}
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array1={0=name,1=age}
array2={0=张三,1=10岁}
implode(",",$array)就是用逗号连接字符串
结果str=name,age; str1=张三，10岁
insert into tb_form (name,age) values('张三，10岁')能看懂的吧？
PHP连接数据库之PHP连接MYSQL数据库代码
?php
$mysql_server_name='localhost';
//改成自己的mysql数据库服务器
$mysql_username='root';
//改成自己的mysql数据库用户名
$mysql_password='12345678';
//改成自己的mysql数据库密码
$mysql_database='mycounter';
//改成自己的mysql数据库名
$conn=mysql_connect($mysql_server_name,
$mysql_username,$mysql_password,
$mysql_database);
$sql='CREATE DATABASE mycounter
DEFAULT CHARACTER SET gbk COLLATE gbk_chinese_ci;
';
mysql_query($sql);
$sql='CREATE TABLE `counter`
(`id` INT(255) UNSIGNED NOT NULL
AUTO_INCREMENT ,`count` INT(255)
UNSIGNED NOT NULL DEFAULT 0,PRIMARY KEY
( `id` ) ) TYPE = innodb;';
mysql_select_db($mysql_database,$conn);
$result=mysql_query($sql);
//echo $sql;
mysql_close($conn);
echo "Hello!数据库mycounter已经成功建立！";
?
PHP连接数据库之PHP连接ACCESS数据库代码方法
?
$conn = new com("ADODB.Connection");
$connstr = "DRIVER={Microsoft
Access Driver (*.mdb)};
DBQ=". realpath("data/db.mdb");
$conn-Open($connstr);
$rs = new com("ADODB.RecordSet");
$rs-Open("select *
from szd_t",$conn,1,1);
while(! $rs-eof) {
$f = $rs-Fields(1);
echo $f-value;
$rs-MoveNext();
}
?
public function rules(){
return array(
array('Sex','required','message'=''),
)
}
你这段代码返回的是一个数组，假设为数组A。这个数组A只有一个元素，这个元素也是一个数组，假设为数组B。数组B有三个字符串元素，两个为值，一个未名/值对。
我推测你的意图是，当required为何值是，不检测message的值。
那么你的数组可以这样修改：
array('Sex','required'='','message'='')
这样，你只要在稍后判断required的值就可以了。
$a = rules();
$rule = $a[0]//返回的是多维数组，所以你要取第一个
if($rule['required']){
//这里是触发message效果的代码
}else{
//这里是不触发
}
首先你的sql语句写的有问题： $catsql="SELECT * FROM categories;";中的语句不用加“；”；
这里是出现了warning：当你的搜索结果是空集的时候，就会出现类似的情况
用if语句结合echo进行判断你的结果集是不是空的；
!--表单文件，拷入index.php--
!DOCTYPE html
html
head
style
label{display:inline-block;width:100px;margin-bottom:10px;}
/style
titleAdd students/title
/head
body
!-- 数据库用mysqli 面向过程调用方法--
form method="post" action="write2db.php"
!--数据库用mysqli 面向过程调用方法
form method="post" action="write2db_sqlio.php"
--
!--数据库用PDO调用方法
form method="post" action="write2db_pdo.php"
--
labelFirst Name/label
input type="text" name="first_name" /
br /
labelLast Name/label
input type="text" name="last_name" /
br /
labeldepartment/label
input type="text" name="department" /
br /
labelEmail/label
input type="text" name="email" /
br /
input type="submit" value="Add students"
/form
/body
/html
------------------------------
?php
//拷贝命名为write2db.php,数据库用mysqli 面向过程调用方法
//print_r($_POST);
// create a variable
$first_name=$_POST['first_name'];
$last_name=$_POST['last_name'];
$department=$_POST['department'];
$email=$_POST['email'];
//调试用
echo "Your input: ";
echo $first_name;
echo 'br /';
echo $last_name;
echo 'br /';
echo $department;
echo 'br /';
echo $email;
echo 'br /';
$servername = "localhost";
//Your database username and password
//$username = "username";
//$password = "password";
$username = "tester";
$password = "testerPassword";
//your database name
$dbname = "test";
$tablename ="student";
// Create connection
$connect = mysqli_connect($servername, $username, $password, $dbname);
if (!$connect) {
die("Connection failed: " . mysqli_connect_error());
}
//Execute the query
$sql="INSERT INTO $tablename (first_name,last_name,department,email)
VALUES('$first_name','$last_name','$department','$email')";
if (mysqli_query($connect, $sql)) {
echo "Hooray! New record is inserted to database successfully. Please check database.";
} else {
echo "Error: " . $sql . "br /" . mysqli_error($connect);
}
mysqli_close($connect);
?
?php
//拷贝命名为write2db_sqlio.php,数据库用mysqli 面向对象调用方法
//print_r($_POST);
// create a variable
$first_name=$_POST['first_name'];
$last_name=$_POST['last_name'];
$department=$_POST['department'];
$email=$_POST['email'];
//调试用
echo "Your input: ";
echo $first_name;
echo 'br /';
echo $last_name;
echo 'br /';
echo $department;
echo 'br /';
echo $email;
echo 'br /';
$servername = "localhost";
//Your database username and password
//$username = "username";
//$password = "password";
$username = "tester";
$password = "testerPassword";
//database name
$dbname = "test";
$tablename ="student";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn-connect_error) {
die("Connection failed: " . $conn-connect_error);
}
$sql="INSERT INTO $tablename (first_name,last_name,department,email)
VALUES('$first_name','$last_name','$department','$email')";
if ($conn-query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "br" . $conn-error;
}
$conn-close();
?
?php
//拷贝为文件write2db_pdo.php,数据库用PDO调用方法
//print_r($_POST);
a variable
$first_name=$_POST['first_name'];
$last_name=$_POST['last_name'];
$department=$_POST['department'];
$email=$_POST['email'];
//调试用
echo "Your input: ";
echo $first_name;
echo 'br /';
echo $last_name;
echo 'br /';
echo $department;
echo 'br /';
echo $email;
echo 'br /';
$servername = "localhost";
//Your database username and password
//$username = "username";
//$password = "password";
$username = "tester";
$password = "testerPassword";
//your database name
$dbname = "test";
$tablename ="student";
// Create connection
try {
$conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
// set the PDO error mode to exception
$conn-setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$sql="INSERT INTO $tablename (first_name,last_name,department,email)
VALUES('$first_name','$last_name','$department','$email')";
// use exec()
$conn-exec($sql);
echo "New record created successfully";
}
catch(PDOException $e)
{
echo $sql . "br" . $e-getMessage();
}
$conn = null;
?
--创建数据库test, 将此文件存为test.sql 导入数据库，或者手动创建表结构
-- phpMyAdmin SQL Dump
-- version 4.7.4
--
--
-- Host: 127.0.0.1:3306
-- Generation Time: Mar 12, 2018 at 04:04 AM
-- Server version: 5.7.19
-- PHP Version: 7.1.9
SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
SET AUTOCOMMIT = 0;
START TRANSACTION;
SET time_zone = "+00:00";
/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8mb4 */;
--
-- Database: `test`
--
-- --------------------------------------------------------
--
-- Table structure for table `student`
--
DROP TABLE IF EXISTS `student`;
CREATE TABLE IF NOT EXISTS `student` (
`id` tinyint(3) UNSIGNED NOT NULL AUTO_INCREMENT,
`first_name` varchar(20) NOT NULL,
`last_name` varchar(20) NOT NULL,
`department` varchar(50) NOT NULL,
`email` varchar(50) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
--
-- Dumping data for table `student`
--
INSERT INTO `student` (`id`, `first_name`, `last_name`, `department`, `email`) VALUES
(1, 'first1', 'last1', 'cs', '1985@qq.com');
COMMIT;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
