mysql_select_db("table"
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,conn)
or
die
("找不到數(shù)據(jù)源");
-----------------------------------------------------------------------
通過PHP創(chuàng)建MYSQL數(shù)據(jù)庫
conn
=
mysql_connect("localhost","root","password")
or
die("無法連接數(shù)據(jù)庫");
mysql_create_db("dwww")
or
die("無法創(chuàng)建數(shù)據(jù)庫");
sqlstr
=
"create
database
other_dwww";
----------------------------------------------------------------------------
創(chuàng)建mysql的表
conn
=
mysql_connect("localhost","root","password")
or
die("無法連接數(shù)據(jù)庫");
mysql_select_db("dwww",conn)
or
die("無法連接數(shù)據(jù)庫dwww");
sql
=
"create
table
dwww_table(
//判斷數(shù)組
colors
=
array(red,
blue,
green);
if(is_array(colors))
{
print(colors
is
an
array.br);
}
//雙精度數(shù)判斷
Temperature
=
15.23;
if(is_double(TemperatuPHP在線視頻教程
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PHP?
THINKPHP貌似沒有自己的方法創(chuàng)建數(shù)據(jù)表。
能想到的有:在thinkphp里執(zhí)行原生的創(chuàng)建表語句。
if(!is_writable('config.php')){
emMsg('配置文件(config.php)不可寫。如果您使用的是Unix/Linux主機(jī),請(qǐng)修改該文件的權(quán)限為777。如果您使用的是Windows主機(jī),請(qǐng)聯(lián)系管理員,將此文件設(shè)為可寫');
}
if(!is_writable(EMLOG_ROOT.'/content/cache')){
emMsg('緩存文件不可寫。如果您使用的是Unix/Linux主機(jī),請(qǐng)修改緩存目錄?(content/cache)?下所有文件的權(quán)限為777。如果您使用的是Windows主機(jī),請(qǐng)聯(lián)系管理員,將該目錄下所有文件設(shè)為可寫');
}
$config?=?"?php\n"
."http://mysql?database?address\n"
."define('DB_HOST','$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)不可寫。如果您使用的是Unix/Linux主機(jī),請(qǐng)修改該文件的權(quán)限為777。如果您使用的是Windows主機(jī),請(qǐng)聯(lián)系管理員,將此文件設(shè)為可寫');
}
fclose($fp);
//密碼加密存儲(chǔ)
$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?{$db_prefix}blog?(gid,title,date,content,excerpt,author,views,comnum,attnum,top,sortop,hide,allow_remark,password)?VALUES?(1,?'歡迎使用emlog',?'".time()."',?'恭喜您成功安裝了emlog,這是系統(tǒng)自動(dòng)生成的演示文章。編輯或者刪除它,然后開始您的創(chuàng)作吧!',?'',?1,?0,?0,?0,?'n',?'n',?'n',?'y',?'');
DROP?TABLE?IF?EXISTS?{$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?{$db_prefix}options?(option_name,?option_value)?VALUES?('blogname','點(diǎn)滴記憶');
INSERT?INTO?{$db_prefix}options?(option_name,?option_value)?VALUES?('bloginfo','使用emlog搭建的站點(diǎn)');
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','');
1、首先創(chuàng)建一個(gè)html文件,編寫上基本的代碼,在head頭部中引入jquery路徑,用于調(diào)用其中封裝的方法。
2、編寫一個(gè)簡單的表格樣式,并編寫一個(gè)執(zhí)行按鈕,用于id,此時(shí)需要給table賦予一個(gè)id屬性。
3、打開瀏覽器,看一下表格效果,目前是有兩行單元格,有兩列數(shù)據(jù)。
3、編寫js代碼實(shí)現(xiàn)點(diǎn)擊效果,先寫一個(gè)按鈕單擊事件,用click方法實(shí)現(xiàn)。
4、在click()方法中編寫表格增加一行的效果,先編寫一行表格的html代碼,轉(zhuǎn)為字符串,然后用append( )方法將字符串追加到表格當(dāng)中。
5、回到瀏覽器界面,點(diǎn)擊click按鈕,會(huì)發(fā)現(xiàn)自動(dòng)多了一行表格內(nèi)容,點(diǎn)擊按鈕添加一行表格就實(shí)現(xiàn)了。
創(chuàng)建數(shù)據(jù)庫:create database 數(shù)據(jù)庫名
創(chuàng)建數(shù)據(jù)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;
執(zhí)行這兩個(gè)sql語句就行
PHP是超文本預(yù)處理器,是一種通用開源腳本語言。
PHP獨(dú)特的語法混合了C、Java、Perl以及 PHP 自創(chuàng)的語法。利于學(xué)習(xí),使用廣泛,主要適用于Web開發(fā)領(lǐng)域。
優(yōu)點(diǎn):
1、流行,容易上手
PHP是目前最流行的編程語言,這毋庸置疑。它驅(qū)動(dòng)全球超過2億多個(gè)網(wǎng)站,有全球超過81.7%的公共網(wǎng)站在服務(wù)器端采用PHP。PHP常用的數(shù)據(jù)結(jié)構(gòu)都內(nèi)置了,使用起來方便簡單,也一點(diǎn)都不復(fù)雜,表達(dá)能力相當(dāng)靈活。
2、開發(fā)職位很多
在服務(wù)器端的網(wǎng)站編程中PHP會(huì)更容易幫助你找到工作。很多互聯(lián)網(wǎng)相關(guān)企業(yè)都在使用PHP開發(fā)框架,所以可以說市場對(duì)PHP的開發(fā)程序員的需求還是比較大的。
3、仍然在不斷發(fā)展
PHP在不斷兼容著類似closures和命名空間等技術(shù),同時(shí)兼顧性能和當(dāng)下流行的框架。版本是7之后,一直在提供更高性能的應(yīng)用。
4、可植入性強(qiáng)
PHP 語言在補(bǔ)丁漏洞升級(jí)過程中,核心部分植入簡單易行,且速度快。
5、拓展性強(qiáng)
PHP 語言在數(shù)據(jù)庫應(yīng)用過程中,可以從數(shù)據(jù)庫調(diào)取各類數(shù)據(jù),執(zhí)行效率高。
擴(kuò)展資料:
缺點(diǎn)
1、PHP的解釋運(yùn)行機(jī)制
在 PHP 中,所有的變量都是頁面級(jí)的,無論是全局變量, 還是類的靜態(tài)成員,都會(huì)在頁面執(zhí)行完畢后被清空。
2、設(shè)計(jì)缺陷
缺少關(guān)注PHP被稱作是不透明的語言,因?yàn)闆]有堆棧追蹤,各種脆弱的輸入。沒有一個(gè)明確的設(shè)計(jì)哲學(xué)。早期的PHP受到Perl的影響,帶有out參數(shù)的標(biāo)準(zhǔn)庫又是有C語言引入,面向?qū)ο蟮牟糠钟质菑?C++和Java學(xué)來的。
3、對(duì)遞歸的不良支持
PHP并不擅長遞歸。它能容忍的遞歸函數(shù)的數(shù)量限制和其他語言比起來明顯少。
參考資料來源:百度百科—PHP