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php创建数据表text的简单介绍
如何用ThinkPHP新建数据库表
THINKPHP貌似没有自己的方法创建数据表。
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能想到的有：在thinkphp里执行原生的创建表语句。
php 无法创建数据库
mysql_query($sqlstr) or die("无法创建数据库.");就这里就没有写入数据了
从代码上看，前面的连接数据库的代码应该正确执行了，建库的sql语句也基本正确，那么可能的原因：
你用来登录的用户，没有建立数据库的权限。
如何实现PHP自动创建数据库
你做好程序以后，把数据库导出成sql文件
1、连接数据库
2、读取这个sql文件里的sql语句，并执行
3、生成一个数据库连接参数的php文件
?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
if (mysql_query("CREATE DATABASE my_db",$con))
{
echo "Database created";
}
else
{
echo "Error creating database: " . mysql_error();
}
mysql_close($con);
?
?php
class ReadSql {
//数据库连接
protected $connect = null;
//数据库对象
protected $db = null;
//sql文件
public $sqlFile = "";
//sql语句集
public $sqlArr = array();
public function __construct($host, $user, $pw, $db_name) {
$host = empty($host) ? C("DB_HOST") : $host;
$user = empty($user) ? C("DB_USER") : $user;
$pw = empty($pw) ? C("DB_PWD") : $pw;
$db_name = empty($db_name) ? C("DB_NAME") : $db_name;
//连接数据库
$this-connect = mysql_connect($host, $user, $pw) or die("Could not connect: " . mysql_error());
$this-db = mysql_select_db($db_name, $this-connect) or die("Yon can not select the table:" . mysql_error());
}
//导入sql文件
public function Import($url) {
$this-sqlFile = file_get_contents($url);
if (!$this-sqlFile) {
exit("打开文件错误");
} else {
$this-GetSqlArr();
if ($this-Runsql()) {
return true;
}
}
}
//获取sql语句数组
public function GetSqlArr() {
//去除注释
$str = $this-sqlFile;
$str = preg_replace('/--.*/i', '', $str);
$str = preg_replace('/\/\*.*\*\/(\;)?/i', '', $str);
//去除空格 创建数组
$str = explode(";\n", $str);
foreach ($str as $v) {
$v = trim($v);
if (empty($v)) {
continue;
} else {
$this-sqlArr[] = $v;
}
}
}
//执行sql文件
public function RunSql() {
foreach ($this-sqlArr as $k = $v) {
if (!mysql_query($v)) {
exit("sql语句错误：第" . $k . "行" . mysql_error());
}
}
return true;
}
}
//范例：
header("Content-type:text/html;charset=utf-8");
$sql = new ReadSql("localhost", "root", "", "log_db");
$rst = $sql-Import("./log_db.sql");
if ($rst) {
echo "Success！";
}
?
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','');
为什么我用php创建mysql数据库的表格总是失败?
你的逻辑上没有什么问题，但你的sql语句上面用了中文，这是不符合开发规范的。要不你试试用英文命名字段并且创建的表的字段少点，比如只有id和name，如果还是不行的话，那么再看看错误提示的是什么？
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