php数据库建设表 php数据库设计
php怎么创建数据库表
那要看你用的是什么数据库，如果要创建成功的提示的话更简单，只需要加上一个判断语句就好了......
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怎么通过一个php文件在数据库里建立一张表
概念混乱啊，PHP是一种编程语言，不是文件。
表是数据库中的对象，通常应该通过数据库管理系统来建立表，然后通过编程语言做出的程序访问表中的数据，而不是动态建立表格。
如何在php创建数据库与数据表
创建数据库：create database 数据库名
创建数据表：
CREATE TABLE `users` (
`id` tinyint(10) auto_increment primary key NOT NULL,
`username` varchar(30) NOT NULL,
`age` int(10) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
执行这两个sql语句就行
用php中sql建数据库和表
下个开源免费的数据库mysql安装程序 和客户端；
然后再使用SQL建库，或者就直接使用test数据库
接着创建表、建表结构
CREATE TABLE 的语法是：
CREATE TABLE "表格名"
("栏位 1" "栏位 1 资料种类",
"栏位 2" "栏位 2 资料种类",
... )
若我们要建立顾客表格，我们就打入以下的 SQL：
CREATE TABLE customer
(First_Name char(50),
Last_Name char(50),
Address char(50),
City char(50),
Country char(25),
Birth_Date date)
其他的SQL可以参考
通过ThinkPHP文件建立数据库数据表
if(!is_writable('config.php')){
emMsg('配置文件(config.php)不可写。如果您使用的是Unix/Linux主机，请修改该文件的权限为777。如果您使用的是Windows主机，请联系管理员，将此文件设为可写');
}
if(!is_writable(EMLOG_ROOT.'/content/cache')){
emMsg('缓存文件不可写。如果您使用的是Unix/Linux主机，请修改缓存目录 (content/cache) 下所有文件的权限为777。如果您使用的是Windows主机，请联系管理员，将该目录下所有文件设为可写');
}
$config = "?php\n"
."//mysql database address\n"
."define('DB_HOST','$db_host');"
."\n//mysql database user\n"
."define('DB_USER','$db_user');"
."\n//database password\n"
."define('DB_PASSWD','$db_pw');"
."\n//database name\n"
."define('DB_NAME','$db_name');"
."\n//database prefix\n"
."define('DB_PREFIX','$db_prefix');"
."\n//auth key\n"
."define('AUTH_KEY','".getRandStr(32).md5($_SERVER['HTTP_USER_AGENT'])."');"
."\n//cookie name\n"
."define('AUTH_COOKIE_NAME','EM_AUTHCOOKIE_".getRandStr(32,false)."');"
."\n";
$fp = @fopen('config.php', 'w');
$fw = @fwrite($fp, $config);
if (!$fw){
emMsg('配置文件(config.php)不可写。如果您使用的是Unix/Linux主机，请修改该文件的权限为777。如果您使用的是Windows主机，请联系管理员，将此文件设为可写');
}
fclose($fp);
//密码加密存储
$PHPASS = new PasswordHash(8, true);
$adminpw = $PHPASS-HashPassword($adminpw);
$dbcharset = 'utf8';
$type = 'MYISAM';
$table_charset_sql = $DB-getMysqlVersion() '4.1' ? 'ENGINE='.$type.' DEFAULT CHARSET='.$dbcharset.';' : 'ENGINE='.$type.';';
if ($DB-getMysqlVersion() '4.1' ){
$DB-query("ALTER DATABASE `{$db_name}` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;", true);
}
$widgets = Option::getWidgetTitle();
$sider_wg = Option::getDefWidget();
$widget_title = serialize($widgets);
$widgets = serialize($sider_wg);
define('BLOG_URL', getBlogUrl());
$sql = "
DROP TABLE IF EXISTS {$db_prefix}blog;
CREATE TABLE {$db_prefix}blog (
gid int(10) unsigned NOT NULL auto_increment,
title varchar(255) NOT NULL default '',
date bigint(20) NOT NULL,
content longtext NOT NULL,
excerpt longtext NOT NULL,
alias VARCHAR(200) NOT NULL DEFAULT '',
author int(10) NOT NULL default '1',
sortid int(10) NOT NULL default '-1',
type varchar(20) NOT NULL default 'blog',
views int(10) unsigned NOT NULL default '0',
comnum int(10) unsigned NOT NULL default '0',
attnum int(10) unsigned NOT NULL default '0',
top enum('n','y') NOT NULL default 'n',
sortop enum('n','y') NOT NULL default 'n',
hide enum('n','y') NOT NULL default 'n',
checked enum('n','y') NOT NULL default 'y',
allow_remark enum('n','y') NOT NULL default 'y',
password varchar(255) NOT NULL default '',
template varchar(255) NOT NULL default '',
PRIMARY KEY (gid),
KEY date (date),
KEY author (author),
KEY sortid (sortid),
KEY type (type),
KEY views (views),
KEY comnum (comnum),
KEY hide (hide)
)".$table_charset_sql."
INSERT INTO {$db_prefix}blog (gid,title,date,content,excerpt,author,views,comnum,attnum,top,sortop,hide,allow_remark,password) VALUES (1, '欢迎使用emlog', '".time()."', '恭喜您成功安装了emlog，这是系统自动生成的演示文章。编辑或者删除它，然后开始您的创作吧！', '', 1, 0, 0, 0, 'n', 'n', 'n', 'y', '');
DROP TABLE IF EXISTS {$db_prefix}attachment;
CREATE TABLE {$db_prefix}attachment (
aid int(10) unsigned NOT NULL auto_increment,
blogid int(10) unsigned NOT NULL default '0',
filename varchar(255) NOT NULL default '',
filesize int(10) NOT NULL default '0',
filepath varchar(255) NOT NULL default '',
addtime bigint(20) NOT NULL default '0',
width int(10) NOT NULL default '0',
height int(10) NOT NULL default '0',
mimetype varchar(40) NOT NULL default '',
thumfor int(10) NOT NULL default 0,
PRIMARY KEY (aid),
KEY blogid (blogid)
)".$table_charset_sql."
DROP TABLE IF EXISTS {$db_prefix}comment;
CREATE TABLE {$db_prefix}comment (
cid int(10) unsigned NOT NULL auto_increment,
gid int(10) unsigned NOT NULL default '0',
pid int(10) unsigned NOT NULL default '0',
date bigint(20) NOT NULL,
poster varchar(20) NOT NULL default '',
comment text NOT NULL,
mail varchar(60) NOT NULL default '',
url varchar(75) NOT NULL default '',
ip varchar(128) NOT NULL default '',
hide enum('n','y') NOT NULL default 'n',
PRIMARY KEY (cid),
KEY gid (gid),
KEY date (date),
KEY hide (hide)
)".$table_charset_sql."
DROP TABLE IF EXISTS {$db_prefix}options;
CREATE TABLE {$db_prefix}options (
option_id INT( 11 ) UNSIGNED NOT NULL auto_increment,
option_name VARCHAR( 255 ) NOT NULL ,
option_value LONGTEXT NOT NULL ,
PRIMARY KEY (option_id),
KEY option_name (option_name)
)".$table_charset_sql."
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('blogname','点滴记忆');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('bloginfo','使用emlog搭建的站点');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('site_title','');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('site_description','');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('site_key','emlog');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('log_title_style','0');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('blogurl','".BLOG_URL."');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('icp','');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('footer_info','');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('admin_perpage_num','15');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('rss_output_num','0');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('rss_output_fulltext','y');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('index_lognum','10');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('index_comnum','10');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('index_twnum','10');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('index_newtwnum','5');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('index_newlognum','5');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('index_randlognum','5');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('index_hotlognum','5');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('comment_subnum','20');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('nonce_templet','default');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('admin_style','default');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('tpl_sidenum','1');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('comment_code','n');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('comment_needchinese','y');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('comment_interval',60);
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('isgravatar','y');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('isthumbnail','y');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('att_maxsize','20480');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('att_type','rar,zip,gif,jpg,jpeg,png,txt,pdf,docx,doc,xls,xlsx');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('att_imgmaxw','420');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('att_imgmaxh','460');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('comment_paging','y');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('comment_pnum','10');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('comment_order','newer');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('login_code','n');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('reply_code','n');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('iscomment','y');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('ischkcomment','y');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('ischkreply','n');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('isurlrewrite','0');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('isalias','n');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('isalias_html','n');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('isgzipenable','n');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('isxmlrpcenable','n');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('ismobile','n');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('isexcerpt','n');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('excerpt_subnum','300');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('istwitter','y');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('istreply','n');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('topimg','content/templates/default/images/top/default.jpg');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('custom_topimgs','a:0:{}');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('timezone','8');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('active_plugins','');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('widget_title','$widget_title');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('custom_widget','a:0:{}');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('widgets1','$widgets');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('widgets2','');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('widgets3','');
INSERT INTO {$db_prefix}options (option_name, option_value) VALUES ('widgets4','');
建立conn.php数据库连接,建立一个数据库表
建立数据表，得是你在cmd窗口或者phpmyadmin、navicat
for
mysql这类终端软件里进行操作。建立数据表的指令是create
table
xxx
();
连接数据库使用php封装好的一个函数mysql_connect();
例如：
mysql_connect('127.0.0.1','root','root');
这样的语句来连接，因为连接数据库会生成连接标识资源，你把这个资源赋给一个新变量
$active_connection_sort
=
mysql_connect('127.0.0.1','root','root');
这样你拿着新变量去玩别的也好下手。
括号中间都是参数，第一个是连接地址，比如localhost，但我个人建议还是127.0.0.1省得还得来一步解析，第二个参数是用户名，第三个参数是密码，都用英文单括号括上。参数和参数之间用英文逗号间隔起来。
用框架做久了这个东西都容易忘，我也是凭记忆写的，你试试看这个能不能过关。
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