小编use*_*856的帖子

我pcntl_fork在PHP中感到困惑.

我认为它确实是多线程的,但它是如何工作的,我将如何在脚本中使用它？

$this->Ruby 中PHP的等价物是什么？

我试图split在Ruby中使用,但我收到此错误:

`importantFuncs':私有方法`split'调用nil:NilClass(NoMethodError)

我曾尝试加入require String和require string,但也都在工作.

require 'socket'
class IRC
    def initialize(ip, port)
        @s = TCPSocket.new(ip, port)
        print 'Now connected to ip ', ip, ' at port ', port, "\n"
    end
    def getPacket()
        line = @s.gets
        puts line
    end
    def closeConnection()
        @s.close
    end
    def sendPacket(packet)
        @s.write(packet)
    end
    def importantFuncs(nick)
        sendPacket("NICK #{nick}")
        z = getPacket
        @m = z.split(':')
        sendPacket("NICK #{nick}")
    end
    #def joinChannel(
end
ip = '127.0.0.1'
port = '6667'
i = IRC.new(ip, port)
i.importantFuncs('test')
i.getPacket

我目前正在尝试用PHP和MYSQL创建一个IP-BAN系统,但是我对MySQL语法并不是很熟悉.到目前为止这是我的代码,它返回最后一个,"呃 - 哦".码:

<?php

    $ip = '127.0.0.1';

    mysql_connect('127.0.0.1', 'user', 'pass');
    mysql_select_db('IP');

    if(mysql_query("SELECT IP FROM IP WHERE IP='127.0.0.1'") == 1){
        echo "If you get this, it may or may not be working";
    }
    elseif(mysql_query("SELECT IP FROM IP WHERE IP='127.0.0.1'") == FALSE){
        echo "If you get this, it means that your IP was not found in the database";
    }
    else{
        echo "Uh-oh!";
    }

我的SQL数据库名称是IP,表名是IP,字段是IP和禁止.

我如何让这段代码告诉我给定的IP是否在表中？