php MYSQL如何为查询数据的结果编上序号 while判断第几条
<? $tsql=$empire->query("select (@i:=@i+1) i,tagid from {$dbtbpre}enewstagsdata , (SELECT @i:=0) as i where id='$navinfor[id]' and classid='$navinfor[classid]' "); while($tr=$empire->fetch($tsql)){ $tt=$empire->fetch1("select * from {$dbtbpre}enewstags where tagid=...
PHP随机信息调用
<?php $hits_r = $empire->query("select * from {$dbtbpre}ecms_news as t1 join (select round(rand() * ((select max(id) from {$dbtbpre}ecms_news)-(select min(id) from {$dbtbpre}ecms_news))+(select min(id) from {$dbtbpre}ecms_news)) as id) as t2 where t1.id >= t2.id and t1.classid = {$...
PHP提取文章所有图片scr
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php SQLite数据库类 用法
sqlite.class.php<?php class SQLite { public $file; public $db; public $query; public $prepare; // const IS_INT = 1; const IS_STR = 2; const ASSOC = 1; const NUM = 2; const BOTH = 3; function __construct($base, $mode = 0666, $auto = true) { ...
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php模拟get提交 字符串截取 字符串替换 示例源码
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php限定时间内同一ip只能访问一次
php限定时间内同一ip只能访问一次 建立一个数据表 CREATE TABLE clicks ( ip INT UNSIGNED NOT NULL , time1 INT UNSIGNED NOT NULL , time2 INT UNSIGNED NOT NULL , PRIMARY KEY ( ip ) ) ENGINE = MYISAM 获取ip和当前时间插入到数据表 INSERT INTO clicks (ip,time2) VALUES (INET_ATON('{$_SERVER["REMOTE_ADDR"]}'),UNIX_TIMESTAMP()) ON DUP...
php实现只保留mysql中最新1000条记录
php实现只保留mysql中最新1000条记录 这篇文章主要介绍了php实现只保留mysql中最新1000条记录的方法和相关示例及数据库结构，十分的全面，有需要的小伙伴可以参考下。<?php mysql_connect("localhost","root","root"); mysql_select_db("test"); //保留最新的1000条记录 $limit=1000; $query="select `id` from `news`"; $result=mysql_quer...
php 限制规定时间内网页刷新次数
<?php$min_seconds_between_refreshes = 5;#设置刷新的时间session_start();if(array_key_exists('last_access', $_SESSION) && time()-$min_seconds_between_refreshes <= $_SESSION['last_access']) { // The user has been here at least $min_seconds_between_refreshes seconds ago - block themexit('5秒可刷...
php sqlite insert into 插入内容带双引号，单引号
$text1=escape_string(text1);$text2=escape_string(text2);insert into MINGYAN (Content1,Content2,Content3,View) VALUES ('$text1','$text2','$time',0);function escape_string($string, $quotestyle='both') { if( function_exists('sqlite_escape_string') ){ $string = sqlite_escape_string($strin...
