php 往mysql中插入数据 <html> <head> <title>Add New Record in MySQL Database</title> </head> <body> <?php if(isset($_POST['add'])) { $dbhost = 'localho
php更新数据库信息 <html> <head> <title>Update a Record in MySQL Database</title> </head> <body> <?php if(isset($_POST['update'])) { $dbhost = 'localh
php 删除mysql表中的数据 <html> <head> <title>Delete a Record from MySQL Database</title> </head> <body> <?php if(isset($_POST['delete'])) { $dbhost =