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The relationship between php and Mysql and some simple operations, phpmysql relationship_PHP tutorial
- WBOYOriginal
- 2016-07-13 10:06:131188browse
The relationship between php and Mysql and some simple operations, phpmysql relationship
Post the code first
<html>
<head>
<title>数据库相关</title>
</head>
<body>
<?<span>php
</span><span>$con</span> = <span>mysql_connect</span>("localhost","root","root"); <span>//</span><span>链接数据库</span>
<span>if</span>(!<span>$con</span><span>){
</span><span>die</span>('连接失败！' . <span>mysql_error</span>()); <span>//</span><span>判断是否成功</span>
<span> }
</span><span>/*</span><span> if(mysql_query("CREATE DATABASE testdb",$con)){ //通过mysql_query 查询或者发送命令
echo "创建testdb成功";
}
else{
echo "失败原因：" . mysql_error(); //判断是否创建成功
}
</span><span>*/</span>
<span>mysql_select_db</span>("testdb",<span>$con</span>); <span>//</span><span>选择链接刚刚创建的数据库</span>
<span>$sql</span> = "<span>CREATE TABLE Persons
(personID int NOT NULL AUTO_INCREMENT,
PRIMARY KEY(personID),
FirstName varchar(15),
LastName varchar(15),
Age int)
</span>"; <span>//</span><span>Mysql 语句 创建表</span>
<span>mysql_query</span>(<span>$sql</span>,<span>$con</span>); <span>//</span><span>执行sql语句</span>
<span>mysql_close</span>(<span>$con</span>); <span>//</span><span>关闭mysql连接</span>
?>
</body>
</html>
The key content is
1. Link database
2. Create table
3. Enrich the content of the table according to needs
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