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PHP基本连接数据库
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connect.php
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<?php??$host="localhost";??$db_user="root";??$db_pass="";??$db_name="demo";??$timezone="Asia/Shanghai";????$link=mysql_connect($host,$db_user,$db_pass);??mysql_select_db($db_name,$link);??mysql_query("SET?names?UTF8");????header("Content-Type:?text/html;?charset=utf-8");???>?? ?
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search.php
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<?php??include_once("connect.php");????$q?=?strtolower($_GET["term"]);??$query=mysql_query("select?*?from?test?where?title?like?'$q%'?limit?0,10");????while?($row=mysql_fetch_array($query))?{??????$result[]?=?array(??????????????'id'?=>?$row['id'],??????????????'label'?=>?$row['title']??????);??}??echo?json_encode($result);???>??
sql
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CREATE?TABLE?`art`?(????`id`?int(11)?NOT?NULL?auto_increment,????`title`?varchar(100)?NOT?NULL,????PRIMARY?KEY??(`id`)??)?ENGINE=MyISAM??DEFAULT?CHARSET=utf8?AUTO_INCREMENT=15?;??????INSERT?INTO?`art`?(`id`,?`title`)?VALUES??(1,?'jstest1'),??(2,?'jstest2'),??(3,?'jstest3'),??(4,?'jstest4'),??(5,?'jstest5'),??(6,?'jstest6');??
分開寫的連接數據庫
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common.ini
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<?php????//非法調用判斷??if(!defined('Inc_Tag')){??????exit("非法調用");??}??//硬路徑轉換??define('ROOT_PATH',?substr(dirname(__FILE__),?0,-8));????//版本判斷??if?(PHP_VERSION<4.0){??????exit("版本太低");??}??require?ROOT_PATH.'\includes\global.func.php';??require?ROOT_PATH.'\includes\mysql.func.php';??define('start_time',?_runtime());????//數據庫連接??define('DB_HOST','Localhost');??define('DB_NAME','test');??define('DB_USER','root');??define('DB_PASSWORD','123456');??//初始化數據庫??_connect();???//連接MYSQL數據庫??_select_db();???//選擇指定的數據庫??_set_names();???//設置字符集?????>??
mysql.php
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<?php??//防止惡意調用??if(!defined('Inc_Tag')){??????exit();??}??/**?????_connect()數據庫連接函數???*/??function?_connect()?{??????//global表示全局變量的意思，意思是此變量在函數外部也可使用??????global?$_conn;??????if(!$conn=mysql_connect(DB_HOST,DB_USER,DB_PASSWORD)){??????????exit("數據庫連接失敗".mysql_error());??????}??}????/**???*????*?_select_db()選擇數據庫???*/??function?_select_db(){??????if(!mysql_select_db(DB_NAME)){??????????exit("ERROR".mysql_error());??????}??}????/**???*????*?_set_names()設置字符集???*/??function?_set_names(){??????if(!mysql_query('SET?NAMES?UTF8')){??????????exit('ERROR'.mysql_error());??????}??}??/**???*????*?_query()查詢語句???*?@param?unknown_type?$sql???*/??function?_query($_sql){??????if?(!$_result=mysql_query($_sql)){??????????exit('SQL?FAILED'.mysql_error());??????}??????return?$_result;??}????/**???*????*?Enter?description?here?...???*?@param?unknown_type?$_sql???*/??function?_fetch_array($_sql){??????return?mysql_fetch_array(_query($_sql),MYSQL_ASSOC);??}????/**???*????*?fetch_array_list($_result)在結果中讀取關聯數組???*?@param?unknown_type?$_result???*/??function?_fetch_array_list($_result){?????return?mysql_fetch_array($_result,MYSQL_ASSOC);????}????/**???*????*?Enter?description?here?...???*?@param?unknown_type?$_sql???*?@param?unknown_type?$_info???*/??function?_is_repeat($_sql,$_info){??????if(_fetch_array($_sql)){??????????_alert_back($_info);??????}??}????/**???*????*?Enter?description?here?...???*/??function?_affected_rows()?{??????return?mysql_affected_rows();??}????????????/**???*????*?_close關閉數據庫連接???*/??function?_close(){??????if?(!mysql_close()){??????????exit("關閉異常".mysql_error());??????}??}???????>?? ?
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global.fun
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<?php??function?_runtime(){??????$_mtime=explode('?',?microtime());??$_temp_time=$_mtime[1]+$_mtime[0];??return?$_temp_time;??}??/**???*????*?_alert_back()對話框彈出函數，然后返回一步???*?@param??$msg?//彈出對話框消息???*?@return?void???*/??function?_alert_back($msg){??????echo?"<script?type='text/javascript'>alert('".$msg."');history.back();</script>";??????exit();??}??????/**???*????*?_alert_close()彈出消息，關閉???*?@param?unknown_type?$msg???*/????function?_alert_close($msg){??????echo?"<script?type='text/javascript'>alert('".$msg."');window.close();</script>";??????exit();??}??????function?_get_xml($_xml_file){??????if?(file_exists($_xml_file)){??????????$_xml=file_get_contents($_xml_file);??????????preg_match_all('/<vip>(.*)<\/vip>/s',$_xml,$_dom);??????????echo?$_dom[1];??????foreach?($_dom[1]?as?$_value)?{??????????????preg_match_all('/<id>(.*)<\/id>/s',$_value,$_id);??????????????print_r($_id);??????????????preg_match_all('/<username>(.*)<\/username>/s',$_value,$_username);??????????????preg_match_all(?'/<sex>(.*)<\/sex>/s',?$_value,?$_sex);??????????????preg_match_all(?'/<face>(.*)<\/face>/s',?$_value,?$_face);??????????????preg_match_all(?'/<email>(.*)<\/email>/s',?$_value,?$_email);??????????????preg_match_all(?'/<url>(.*)<\/url>/s',?$_value,?$_url);??????????????$_html['id']?=?$_id[1][0];??????????????$_html['username']?=?$_username[1][0];??????????????$_html['sex']?=?$_sex[1][0];??????????????$_html['face']?=?$_face[1][0];??????????????$_html['email']?=?$_email[1][0];??????????????$_html['url']?=?$_url[1][0];??????????}??????}?else?{??????????echo?'文件不存在';??????}??????return?$_html;??}??/**???*????*?Enter?description?here?...???*?@param?unknown_type?$_xmlfile???*?@param?unknown_type?$_clean???*/??function?_set_xml($_xmlfile,$_clean)?{??????$_fp?=?@fopen('new.xml','w');??????if?(!$_fp)?{??????????exit('系統錯誤，文件不存在！');??????}??????flock($_fp,LOCK_EX);????????????$_string?=?"<?xml?version=\"1.0\"?encoding=\"utf-8\"?>\r\n";??????fwrite($_fp,$_string,strlen($_string));??????$_string?=?"<vip>\r\n";??????fwrite($_fp,$_string,strlen($_string));??????$_string?=?"\t<id>{$_clean['id']}</id>\r\n";??????fwrite($_fp,$_string,strlen($_string));??????$_string?=?"\t<username>{$_clean['username']}</username>\r\n";??????fwrite($_fp,$_string,strlen($_string));??????$_string?=?"\t<sex>{$_clean['sex']}</sex>\r\n";??????fwrite($_fp,$_string,strlen($_string));??????$_string?=?"\t<face>{$_clean['face']}</face>\r\n";??????fwrite($_fp,$_string,strlen($_string));??????$_string?=?"\t<email>{$_clean['email']}</email>\r\n";??????fwrite($_fp,$_string,strlen($_string));??????$_string?=?"\t<url>{$_clean['url']}</url>\r\n";??????fwrite($_fp,$_string,strlen($_string));??????$_string?=?"</vip>";??????fwrite($_fp,$_string,strlen($_string));????????????flock($_fp,LOCK_UN);??????fclose($_fp);??}??/**???*????*?_location()跳轉函數???*?@param?unknown_type?$_msg???*?@param?unknown_type?$_url???*/????function?_location($_msg,$_url){??????if?(!empty($_msg)){??????echo?"<script?type='text/javascript'>alert('$_msg');location.href='$_url';</script>";??????exit();??????}else?{??????????header('location:'.$_url);??????}????????}????function?_title($_string){??????if(mb_strlen($_string,'utf-8')>14){??????????return?mb_substr($_string,?1,6,'utf-8').'...';??????}??????return?$_string;??}????/**???*????*?_html()對數組或者字符串進行html過濾???*?@param?array?or?string?$_string???*?@return?string?or?array???*/??function?_html($_string){??????if?(is_array($_string)){??????????foreach?($_string?as?$_key=>$_value){??????????????$_string[$_key]=_html($_value);//采用遞歸對其進行html過濾??????????}??????}else?{??????????$_string=htmlspecialchars($_string);??????}??????return?$_string;??}????/**???*????*?_page()對查詢的進行分頁處理，???*?@param?unknown_type?$_sql???*?@param?unknown_type?$_size???*/??function?_page($_sql,$_size)?{??????//將里面的所有變量取出來，外部可以訪問??????global?$_page,$_pagesize,$_pagenum,$_pageabsolute,$_num;??????if?(isset($_GET['page']))?{??????????$_page=$_GET['page'];??????????if?(empty($_page)?||?$_page?<?0?||?!is_numeric($_page))?{??????????????$_page=1;??????????}?else?{??????????????$_page=intval($_page);??????????}??????}?else?{??????????$_page=1;??????}??????$_pagesize=$_size;??????$_num=mysql_num_rows(_query($_sql));??????if?($_num==0)?{??????????$_pageabsolute=1;??????}?else?{??????????$_pageabsolute=ceil($_num/$_pagesize);??????}??????if?($_page>$_pageabsolute)?{??????????$_page=$_pageabsolute;??????}??????$_pagenum=($_page?-?1)?*?$_pagesize;??}????/**???*????*/??function?_paging($_type)?{??????global?$_page,$_pageabsolute,$_num;??????if?($_type==1)?{??????????echo?'<div?id="page_num">';??????????echo?'<ul>';??????????????????for?($i=0;$i<$_pageabsolute;$i++)?{??????????????????????????if?($_page==($i+1))?{??????????????????????????????echo?'<li><a?href="'.Script.'.php?page='.($i+1).'"?class="selected">'.($i+1).'</a></li>';??????????????????????????}?else?{??????????????????????????????echo?'<li><a?href="'.Script.'.php?page='.($i+1).'">'.($i+1).'</a></li>';??????????????????????????}??????????????????}??????????echo?'</ul>';??????????echo?'</div>';??????}?elseif?($_type==2)?{??????????echo?'<div?id="page_text">';??????????echo?'<ul>';??????????echo?'<li>'.$_page.'/'.$_pageabsolute.'頁?|?</li>';??????????echo?'<li>共有<strong>'.$_num.'</strong>個會員?|?</li>';??????????????????if?($_page==1)?{??????????????????????echo?'<li>首頁?|?</li>';??????????????????????echo?'<li>上一頁?|?</li>';??????????????????}?else?{??????????????????????echo?'<li><a?href="'.SCRIPT.'.php">首頁</a>?|?</li>';??????????????????????echo?'<li><a?href="'.SCRIPT.'.php?page='.($_page-1).'">上一頁</a>?|?</li>';??????????????????}??????????????????if?($_page==$_pageabsolute)?{??????????????????????echo?'<li>下一頁?|?</li>';??????????????????????echo?'<li>尾頁</li>';??????????????????}?else?{??????????????????????echo?'<li><a?href="'.SCRIPT.'.php?page='.($_page+1).'">下一頁</a>?|?</li>';??????????????????????echo?'<li><a?href="'.SCRIPT.'.php?page='.$_pageabsolute.'">尾頁</a></li>';??????????????????}??????????echo?'</ul>';??????????echo?'</div>';??????}??}????????function?_unsetcookies(){??????setcookie('username','',time()-1);??????setcookie('uniqid','',time()-1);??????session_destroy();??????_location(null,'index.php');??}??/**???*?_code()?注冊碼函數???*?@access?public???*?@param?$_width?驗證碼圖片寬???*?@param?$_height?驗證碼圖片高???*?@param?$_rnd_code?驗證碼位數???*?@param?$_flag?是否顯示黑色邊框???*?@return?void?返回一驗證碼圖片???*/????function?_code($_width=75,$_height=25,$_rnd_code=4,$flag=FALSE){??????//創建隨機碼??for?($i=0;$i<$_rnd_code;$i++)?{??????$_nmsg?.=?dechex(mt_rand(0,15));??}????//保存在session??$_SESSION['code']?=?$_nmsg;????????//創建一張圖像??$_img?=?imagecreatetruecolor($_width,$_height);????//白色??$_white?=?imagecolorallocate($_img,255,255,255);????//填充??imagefill($_img,0,0,$_white);????$_flag?=?false;????if?($_flag)?{??????//黑色,邊框??????$_black?=?imagecolorallocate($_img,0,0,0);??????imagerectangle($_img,0,0,$_width-1,$_height-1,$_black);??}????//隨即畫出6個線條??for?($i=0;$i<6;$i++)?{??????$_rnd_color?=?imagecolorallocate($_img,mt_rand(0,255),mt_rand(0,255),mt_rand(0,255));??????imageline($_img,mt_rand(0,$_width),mt_rand(0,$_height),mt_rand(0,$_width),mt_rand(0,$_height),$_rnd_color);??}????//隨即雪花??for?($i=0;$i<100;$i++)?{??????$_rnd_color?=?imagecolorallocate($_img,mt_rand(200,255),mt_rand(200,255),mt_rand(200,255));??????imagestring($_img,1,mt_rand(1,$_width),mt_rand(1,$_height),'*',$_rnd_color);??}????//輸出驗證碼??for?($i=0;$i<strlen($_SESSION['code']);$i++)?{??????$_rnd_color?=?imagecolorallocate($_img,mt_rand(0,100),mt_rand(0,150),mt_rand(0,200));??????imagestring($_img,5,$i*$_width/$_rnd_code+mt_rand(1,10),mt_rand(1,$_height/2),$_SESSION['code'][$i],$_rnd_color);??}????//輸出圖像??header('Content-Type:?image/png');??imagepng($_img);????//銷毀??imagedestroy($_img);??}????function?_sha1_uniqid(){??????return?sha1(uniqid(rand(),TRUE));??}?????>?? 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查詢
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<?php??/**??*?TestGuest?Version1.0??*?================================================??*?Copy?2010-2012?yc60??*?Web:?http://www.yc60.com??*?================================================??*?Author:?Lee??*?Date:2011-9-7??*/??error_reporting(E_ALL^E_NOTICE);??//定義常量，授權includes的包含文件??define('Inc_Tag',?TRUE);??//定義常量，包含CSS文件??define('Script',?'blog');??//包含公共文件??require?dirname(__FILE__).'/includes/common.inc.php';???>??<!DOCTYPE?html?PUBLIC?"-//W3C//DTD?XHTML?1.0?Transitional//EN"?"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">??<html?xmlns="http://www.w3.org/1999/xhtml">??<head>??<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8"?/>??<title>hello?gull記事本-博友界面</title>??<?php???//包含CSS文件??require?ROOT_PATH.'includes/title.inc.php';???>??</head>??<body>??<?php???//包含頭文件??require?ROOT_PATH.'includes/header.inc.php';??//分頁模塊??global?$_pagesize,$_pagenum;??_page("SELECT?dg_id?FROM?tg_user",10);???//第一個參數獲取總條數，第二個參數，指定每頁多少條??????//讀取數據庫信息??$_result=_query("SELECT?t_username,t_sex,t_face?FROM?tg_user?ORDER?BY?t_reg_time?DESC?limit?$_pagenum,$_pagesize");???>????<div?id="blog">??<div>??<h2>博友信息</h2>????<?php?while?(!!$rows=_fetch_array_list($_result)){?>??<dl>??<dd?class="user"><?php?echo?$rows['t_username']?>(<?php?echo?$rows['t_sex']?>)</dd>??<dt><img?src="<?php?echo?$rows['t_face']?>"?/></dt>??<dd?class="message">發消息</dd>??<dd?class="friend">加為好友</dd>??<dd?class="guest">寫留言</dd>??<dd?class="flower">給他送花</dd>??</dl>????<?php?}?>??<?php??_paging(1);???>??</div>??<?php???//包含尾部文件??require?ROOT_PATH.'includes/footer.inc.php';???>????</body>??</html>??
轉載于:https://www.cnblogs.com/ZDPPU/p/6483052.html
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