How to Install PHP 7.2, 7.1 on CentOS/RHEL 7.4 & 6.9

Install Yum Repository

First of all, you need to enable Webtatic and EPEL yum repositories on your system. Use the following command to install EPEL repository on your CentOS and Red Hat 7/6 systems

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How to Install PHP 7, NGINX & MySQL 5.6 on CentOS/RHEL 7.4 & 6.9

Few days back PHP version 7.2 has been released. Which has a number of changes and improvements over PHP version 7.X. This article will help you to install PHP 7, NGINX and MySQL 5.6 on CentOS / RHEL 7.4 & 6.9 operating systems. This tutorial has been tested with CentOS 7.4, so all the services command are used with systemctl, For CentOS 6 users change all systemctl command correspondence service command.

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CSRF

概念

全称 : Cross Site Request forgrey
中文 : 跨站请求伪造

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XSS

什么说XSS

全称: Cross Site Script
中文: 跨站脚本
用途: 盗取用户信息，串改页面实现钓鱼，制造蠕虫等。

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web安全问题

钓鱼

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PHP To SQL

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<?php
# 连接数据库
$con = mysql_connect("localhost","root","root");

if(!$con){
    dir("Database Connect Error".mysql_error());
}else{
    # 设定编码
    mysql_query( "set names utf8"  );

    # 连接数据库
    mysql_select_db("websafe",$con);

    # 操作数据库
    $result = mysql_query("select * from teacher");
    echo "Show teachers in table<br />";
    echo "<table border='2' width='300'>"
        <tr><th>id</th><th>name</th><th>sex</th><th>addr</th> </tr>";
    while($row = mysql_fetch_array($result)){
        echo "<tr>";
        echo "<td>".$row["id"]."</td>";
        echo "<td>".$row["name"]."</td>";
        echo "<td>".$row["sex"]."</td>";
        echo "<td>".$row["addr"]."</td>";
        echo "</tr>";
    }
    echo "</table>";
}

# 关闭数据库
mysql_close($con);
?>

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PHP

脚本范围 <?php ?>

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SQL

数据库操作

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create database "websafe";
show databasee;
use websafe;
drop database websafe;

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Javascript

1. 概述

加载方式

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