Commit 427e89c

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添加 php操作MYSQL 数据库之mysqli_query()

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	`1`	`+<?php`
	`2`	`+/**`
	`3`	`+ * Created by PhpStorm.`
	`4`	`+ * User: zq199`
	`5`	`+ * Date: 2016年10月30日`
	`6`	`+ * Time: 20:11`
	`7`	`+ */`
	`8`	`+//连接数据库`
	`9`	`+$conn = mysqli_connect('localhost','root','');`
	`10`	`+if($conn){`
	`11`	`+ echo '<p>数据库连接成功!';`
	`12`	`+}`
	`13`	`+$link = mysqli_select_db($conn,'test12') or die ('数据库访问错误'.mysqli_errno($conn));`
	`14`	`+if($link){`
	`15`	`+ echo '<p>数据库选择成功!';`
	`16`	`+}`
	`17`	`+mysqli_query($conn,"set names utf8_general_ci");`
	`18`	`+//插入数据`
	`19`	`+$result1 = mysqli_query($conn,"insert into tb_user(user,pwd) VALUES ('Nike','nike123')");`
	`20`	`+if($result1){`
	`21`	`+ echo '<p>插入数据成功!';`
	`22`	`+}`
	`23`	`+//修改数据`
	`24`	`+$result2 = mysqli_query($conn," update tb_user set user='nike',pwd='change123' WHERE user = 'Nike'");`
	`25`	`+if($result2){`
	`26`	`+ echo '<p>修改数据成功!';`
	`27`	`+}`
	`28`	`+//修改数据`
	`29`	`+$result3 = mysqli_query($conn," delete from tb_user WHERE user = 'nike'");`
	`30`	`+if($result3){`
	`31`	`+ echo '<p>删除数据成功!';`
	`32`	`+}`
	`33`	`+//查询数据`
	`34`	`+$result4 = mysqli_query($conn," select * from tb_user");`
	`35`	`+if($result4){`
	`36`	`+ echo "<p>查询数据成功!";`
	`37`	`+}`
	`38`	`+`
	`39`	`+mysqli_close($conn);`

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