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                        1. 当前位置 : IT培训网 > PHP开发 > php教程 > PHP教程之PHP过滤器

                          PHP教程之PHP过滤器

                          时间:2015-11-30 11:01:14  来源:php培训网  作者:郑州IT培训网  已有:名学员访问该课程
                          学习的路上也许会有坎坷,如果你有什么问题可以到IT培训网PHP教程栏目来找答案。IT培训网小编今天给大家分享的是PHP教程之PHP过滤器。

                            学习的路上也许会有坎坷,如果你有什么问题可以到IT培训网PHP教程栏目来找答案。IT培训网小编今天给大家分享的是PHP教程之PHP过滤器。

                                 PHP 过滤器

                          天下棋牌下载   PHP GUOLVQIYONGYUYANZHENGHEGUOLVLAIZIFEIANQUANLAIYUANDESHUJU,BIRUYONGHUDESHURU。

                            什么是 PHP 过滤器?

                          天下棋牌下载   PHP GUOLVQIYONGYUYANZHENGHEGUOLVLAIZIFEIANQUANLAIYUANDESHUJU。

                            CESHI、YANZHENGHEGUOLVYONGHUSHURUHUOZIDINGYISHUJUSHIRENHE Web YINGYONGCHENGXUDEZHONGYAOZUCHENGBUFEN。

                          天下棋牌下载   PHP DEGUOLVQIKUOZHANDESHEJIMUDESHISHISHUJUGUOLVGENGQINGSONGKUAIJIE。

                            为什么使用过滤器?

                          天下棋牌下载   JIHUSUOYOUDE Web YINGYONGCHENGXUDOUYILAIWAIBUDESHURU。ZHEIXIESHUJUTONGCHANGLAIZIYONGHUHUOQITAYINGYONGCHENGXU(BIRU web FUWU)。TONGGUOSHIYONGGUOLVQI,NINNENGGOUQUEBAOYINGYONGCHENGXUHUODEZHENGQUEDESHURULEIXING。

                          天下棋牌下载   NINYINGGAISHIZHONGDUIWAIBUSHUJUJINXINGGUOLV!

                            SHURUGUOLVSHIZUIZHONGYAODEYINGYONGCHENGXUANQUANKETIZHIYI。

                          天下棋牌下载   SHENMESHIWAIBUSHUJU?

                            LAIZIBIAODANDESHURUSHUJU

                          天下棋牌下载   Cookies

                            Web services data

                            FUWUQIBIANLIANG

                            SHUJUKUCHAXUNJIEGUO

                            函数和过滤器

                            RUXUGUOLVBIANLIANG,QINGSHIYONGXIAMIANDEGUOLVQIHANSHUZHIYI:

                            filter_var() - TONGGUOYIGEZHIDINGDEGUOLVQILAIGUOLVDANYIDEBIANLIANG

                            filter_var_array() - TONGGUOXIANGTONGDEHUOBUTONGDEGUOLVQILAIGUOLVDUOGEBIANLIANG

                            filter_input - HUOQUYIGESHURUBIANLIANG,BINGDUITAJINXINGGUOLV

                          天下棋牌下载   filter_input_array - HUOQUDUOGESHURUBIANLIANG,BINGTONGGUOXIANGTONGDEHUOBUTONGDEGUOLVQIDUITAMENJINXINGGUOLV

                          天下棋牌下载   ZAIXIAMIANDESHILIZHONG,WOMENYONG filter_var() HANSHUYANZHENGLEYIGEZHENGSHU:

                            SHILI

                          天下棋牌下载   <?php $int = 123; if(!filter_var($int, FILTER_VALIDATE_INT)) { echo("BUSHIYIGEHEFADEZHENGSHU"); } else { echo("SHIGEHEFADEZHENGSHU"); } ?>

                            SHANGMIANDEDAIMASHIYONGLE "FILTER_VALIDATE_INT" GUOLVQILAIGUOLVBIANLIANG。YOUYUZHEIGEZHENGSHUSHIHEFADE,YINCISHANGMIANDEDAIMAJIANGSHUCHU:

                            

                          PHP教程之PHP过滤器_wescliffe.com

                           

                          天下棋牌下载   RUGUOWOMENCHANGSHISHIYONGYIGEFEIZHENGSHUDEBIANLIANG(BIRU "123abc"),ZEJIANGSHUCHU:"Integer is not valid"。

                            Validating 和 Sanitizing

                            YOULIANGZHONGGUOLVQI:

                          天下棋牌下载   Validating GUOLVQI:

                            YONGYUYANZHENGYONGHUSHURU

                            YANGEDEGESHIGUIZE(BIRU URL HUO E-Mail YANZHENG)

                          天下棋牌下载   RUGUOCHENGGONGZEFANHUIYUQIDELEIXING,RUGUOSHIBAIZEFANHUI FALSE

                          天下棋牌下载   Sanitizing GUOLVQI:

                          天下棋牌下载   YONGYUYUNXUHUOJINZHIZIFUCHUANZHONGZHIDINGDEZIFU

                          天下棋牌下载   WUSHUJUGESHIGUIZE

                            SHIZHONGFANHUIZIFUCHUAN

                            选项和标志

                            XUANXIANGHEBIAOZHIYONGYUXIANGZHIDINGDEGUOLVQITIANJIAEWAIDEGUOLVXUANXIANG。

                          天下棋牌下载   BUTONGDEGUOLVQIYOUBUTONGDEXUANXIANGHEBIAOZHI。

                            ZAIXIAMIANDESHILIZHONG,WOMENYONG filter_var() HE "min_range" YIJI "max_range" XUANXIANGYANZHENGLEYIGEZHENGSHU:

                            SHILI

                            <?php $var=300; $int_options = array( "options"=>array ( "min_range"=>0, "max_range"=>256 ) ); if(!filter_var($var, FILTER_VALIDATE_INT, $int_options)) { echo("BUSHIYIGEHEFADEZHENGSHU"); } else { echo("SHIGEHEFADEZHENGSHU"); } ?>

                            JIUXIANGSHANGMIANDEDAIMAYIYANG,XUANXIANGBIXUFANGRUYIGEMINGWEI "options" DEXIANGGUANSHUZUZHONG。RUGUOSHIYONGBIAOZHI,ZEBUXUZAISHUZUNEI。

                          天下棋牌下载   YOUYUZHENGSHUSHI "300",TABUZAIZHIDINGDEFANWEINEI,YISHANGDAIMADESHUCHUJIANGSHI:

                          天下棋牌下载   BUSHIYIGEHEFADEZHENGSHU

                          天下棋牌下载   RUXUCHAKANWANZHENGDEHANSHUHEGUOLVQILIEBIAO,QINGFANGWENWOMENDE PHP Filter CANKAOSHOUCE。NINKEYIKANDAOMEIGEGUOLVQIDEKEYONGXUANXIANGHEBIAOZHI。

                            验证输入

                            RANGWOMENSHIZHEYANZHENGLAIZIBIAODANDESHURU。

                            WOMENXUYAOZUODEDIYIJIANSHIQINGSHIQUERENSHIFOUCUNZAIWOMENZHENGZAICHAZHAODESHURUSHUJU。

                          天下棋牌下载   RANHOUWOMENYONG filter_input() HANSHUGUOLVSHURUDESHUJU。

                          天下棋牌下载   ZAIXIAMIANDESHILIZHONG,SHURUBIANLIANG "email" BEICHUANDAO PHP YEMIAN:

                            SHILI

                            <?php if(!filter_has_var(INPUT_GET, "email")) { echo("MEIYOU email CANSHU"); } else { if (!filter_input(INPUT_GET, "email", FILTER_VALIDATE_EMAIL)) { echo "BUSHIYIGEHEFADE E-Mail"; } else { echo "SHIYIGEHEFADE E-Mail"; } } ?>

                          天下棋牌下载   YISHANGSHILICESHIJIEGUORUXIA:

                            

                          PHP教程之PHP过滤器_wescliffe.com

                           

                            SHILIJIESHI

                          天下棋牌下载   SHANGMIANDESHILIYOUYIGETONGGUO "GET" FANGFACHUANSONGDESHURUBIANLIANG (email):

                          天下棋牌下载   JIANCESHIFOUCUNZAI "GET" LEIXINGDE "email" SHURUBIANLIANG

                            RUGUOCUNZAISHURUBIANLIANG,JIANCETASHIFOUSHIYOUXIAODE e-mail DIZHI

                            净化输入

                          天下棋牌下载   RANGWOMENSHIZHEQINGLIYIXIACONGBIAODANCHUANLAIDE URL。

                            SHOUXIAN,WOMENYAOQUERENSHIFOUCUNZAIWOMENZHENGZAICHAZHAODESHURUSHUJU。

                            RANHOU,WOMENYONG filter_input() HANSHULAIJINGHUASHURUSHUJU。

                            ZAIXIAMIANDESHILIZHONG,SHURUBIANLIANG "url" BEICHUANDAO PHP YEMIAN:

                            <?php

                          天下棋牌下载   if(!filter_has_var(INPUT_GET, "url"))

                            {

                          天下棋牌下载   echo("MEIYOU url CANSHU");

                            }

                            else

                            {

                            $url = filter_input(INPUT_GET,

                          天下棋牌下载   "url", FILTER_SANITIZE_URL);

                            echo $url;

                            }

                            ?>

                            SHILIJIESHI

                            SHANGMIANDESHILIYOUYIGETONGGUO "GET" FANGFACHUANSONGDESHURUBIANLIANG (url):

                            JIANCESHIFOUCUNZAI "GET" LEIXINGDE "url" SHURUBIANLIANG

                            RUGUOCUNZAICISHURUBIANLIANG,DUIQIJINXINGJINGHUA(SHANCHUFEIFAZIFU),BINGJIANGQICUNCHUZAI $url BIANLIANGZHONG

                          天下棋牌下载   JIARUSHURUBIANLIANGSHIYIGELEISIZHEIYANGDEZIFUCHUAN:"http://wescliffe.com/",ZEJINGHUAHOUDE $url BIANLIANGRUXIASUOSHI:

                            

                          PHP教程之PHP过滤器_wescliffe.com

                           

                            过滤多个输入

                            BIAODANTONGCHANGYOUDUOGESHURUZIDUANZUCHENG。WEILEBIMIANDUI filter_var HUO filter_input HANSHUZHONGFUDIAOYONG,WOMENKEYISHIYONG filter_var_array HUO the filter_input_array HANSHU。

                          天下棋牌下载   ZAIBENLIZHONG,WOMENSHIYONG filter_input_array() HANSHULAIGUOLVSANGE GET BIANLIANG。JIESHOUDAODE GET BIANLIANGSHIYIGEMINGZI、YIGENIANLINGYIJIYIGE e-mail DIZHI:

                            SHILI

                            <?php $filters = array ( "name" => array ( "filter"=>FILTER_SANITIZE_STRING ), "age" => array ( "filter"=>FILTER_VALIDATE_INT, "options"=>array ( "min_range"=>1, "max_range"=>120 ) ), "email"=> FILTER_VALIDATE_EMAIL ); $result = filter_input_array(INPUT_GET, $filters); if (!$result["age"]) { echo("NIANLINGBIXUZAI 1 DAO 120 ZHIJIAN。<br>"); } elseif(!$result["email"]) { echo("E-Mail BUHEFA<br>"); } else { echo("SHURUZHENGQUE"); } ?>

                            SHILIJIESHI

                            SHANGMIANDESHILIYOUSANGETONGGUO "GET" FANGFACHUANSONGDESHURUBIANLIANG (name、age HE email):

                            SHEZHIYIGESHUZU,QIZHONGBAOHANLESHURUBIANLIANGDEMINGCHENGHEYONGYUZHIDINGDESHURUBIANLIANGDEGUOLVQI

                            DIAOYONG filter_input_array() HANSHU,CANSHUBAOKUO GET SHURUBIANLIANGJIGANGCAISHEZHIDESHUZU

                            JIANCE $result BIANLIANGZHONGDE "age" HE "email" BIANLIANGSHIFOUYOUFEIFADESHURU。(RUGUOCUNZAIFEIFASHURU,ZAISHIYONG filter_input_array() HANSHUZHIHOU,SHURUBIANLIANGWEI FALSE。)

                          天下棋牌下载   filter_input_array() HANSHUDEDIERGECANSHUKEYISHISHUZUHUODANYIGUOLVQIDE ID。

                            RUGUOGAICANSHUSHIDANYIGUOLVQIDE ID,NEIMEZHEIGEZHIDINGDEGUOLVQIHUIGUOLVSHURUSHUZUZHONGSUOYOUDEZHI。

                          天下棋牌下载   RUGUOGAICANSHUSHIYIGESHUZU,NEIMECISHUZUBIXUZUNXUNXIAMIANDEGUIZE:

                            BIXUSHIYIGEGUANLIANSHUZU,QIZHONGBAOHANDESHURUBIANLIANGSHISHUZUDEJIAN(BIRU "age" SHURUBIANLIANG)

                          天下棋牌下载   CISHUZUDEZHIBIXUSHIGUOLVQIDE ID ,HUOZHESHIGUIDINGLEGUOLVQI、BIAOZHIHEXUANXIANGDESHUZU

                            使用 Filter Callback

                          天下棋牌下载   TONGGUOSHIYONG FILTER_CALLBACK GUOLVQI,KEYIDIAOYONGZIDINGYIDEHANSHU,BATAZUOWEIYIGEGUOLVQILAISHIYONG。ZHEIYANG,WOMENJIUYONGYOULESHUJUGUOLVDEWANQUANKONGZHIQUAN。

                            NINKEYICHUANGJIANZIJIDEZIDINGYIHANSHU,YEKEYISHIYONGYICUNZAIDE PHP HANSHU。

                            JIANGNINZHUNBEIYONGDAODEGUOLVQIDEHANSHU,ANZHIDINGXUANXIANGDEGUIDINGFANGFAJINXINGGUIDING。ZAIGUANLIANSHUZUZHONG,DAIYOUMINGCHENG "options"。

                          天下棋牌下载   ZAIXIAMIANDESHILIZHONG,WOMENSHIYONGLEYIGEZIDINGYIDEHANSHUBASUOYOU "_" ZHUANHUANWEI ".":

                            SHILI

                          天下棋牌下载   <?php function convertSpace($string) { return str_replace("_", ".", $string); } $string = "wescliffe.com!"; echo filter_var($string, FILTER_CALLBACK, array("options"=>"convertSpace")); ?>

                            SHILIJIESHI

                            SHANGMIANDESHILIBASUOYOU "_" ZHUANHUANCHENG "." :

                          天下棋牌下载   CHUANGJIANYIGEBA "_" TIHUANWEI "." DEHANSHU

                            DIAOYONG filter_var() HANSHU,TADECANSHUSHI FILTER_CALLBACK GUOLVQIYIJIBAOHANWOMENDEHANSHUDESHUZU

                                小编给大家分享的PHP教程PHP过滤器学会了吗? 勤学如春起之苗,不见其长,日有所增。

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                          PHP 教程
                          1、PHP 基础
                          1.1 PHP 简介
                          1.2 PHP 安装
                          1.3 PHP 语法
                          1.4 PHP 变量
                          1.5 PHP echo/print
                          1.6 PHP 数据类型
                          1.7 PHP 常量
                          1.8 PHP 字符串
                          1.9 PHP 运算符
                          1.10 PHP If...Else
                          1.11 PHP Switch
                          1.12 PHP 数组
                          1.13 PHP 数组排序
                          1.14 PHP 超级全局变量
                          1.15 PHP While 循环
                          1.16 PHP For 循环
                          1.17 PHP 函数
                          1.18 PHP 魔术变量
                          1.19 PHP 命名空间
                          1.20 PHP 面向对象
                          2、PHP 表单
                          2.1 PHP 表单
                          2.2 PHP 表单验证
                          2.3 PHP 表单 - 必需字段
                          2.4 PHP 表单 - 验证邮件和URL
                          2.5 PHP 完整表单实例
                          2.6 PHP $_GET 变量
                          2.7 PHP $_POST 变量
                          3、PHP 高级教程
                          3.1 PHP 多维数组
                          3.2 PHP 日期
                          3.3 PHP 包含
                          3.4 PHP 文件
                          3.5 PHP 文件上传
                          3.6 PHP Cookie
                          3.7 PHP Session
                          3.8 PHP E-mail
                          3.9 PHP 安全 E-mail
                          3.10 PHP Error
                          3.11 PHP 过滤器
                          3.12 PHP 高级过滤器
                          3.13 PHP JSON
                          4、PHP 7 新特性
                          4.1 PHP 7 新特性
                          5、PHP 数据库
                          5.1 PHP MySQL 简介
                          5.2 PHP MySQL 连接
                          5.3 PHP MySQL 创建数据库
                          5.4 PHP MySQL 创建数据表
                          5.5 PHP MySQL 插入数据
                          5.6 PHP MySQL 插入多条数据
                          5.7 PHP MySQL 预处理语句
                          5.8 PHP MySQL 读取数据
                          5.9 PHP MySQL Where
                          5.10 PHP MySQL Order By
                          5.11 PHP MySQL Update
                          5.12 PHP MySQL Delete
                          5.13 PHP ODBC
                          6、PHP XML
                          6.1 XML Expat Parser
                          6.2 XML DOM
                          6.3 XML SimpleXML
                          7、PHP 与 AJAX
                          7.1 AJAX 简介
                          7.2 AJAX 与PHP
                          7.3 AJAX 数据库
                          7.4 AJAX XML
                          7.5 AJAX 实时搜索
                          7.6 AJAX RSS Reader
                          7.7 AJAX 投票

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