用来偷文章的一段代码

2012-05-08 , PHP   

$string = ‘
‘;
preg_match_all(‘|<p>(.+?)</p>|s’,$string,$ms);
$string = ”;
foreach ($ms[0] as $r){
preg_match_all(‘|<font color=”#0000A0″>(.+?)</font>|s’,$r,$ns);
$string .=’<p>’;
foreach ($ns[0] as $n){
$string.= strip_tags($n);
}
$string .=’</p>’;
}
echo $string;

PHP 时间转换几秒、分、小时、天、月、年前

2011-11-10 , PHP   

PHP官方看到的一个函数，保证好用。PHP转换日期为 几秒前，几分钟前，几小时前，几天前，几个月前，几年前。

<?php function timesince( $tsmp ) {

$diffu = array(  ’seconds’=>2, ’minutes’ => 120, ’hours’ => 7200, ’days’ => 172800, ’months’ => 5259487,  ’years’ =>  63113851);
$diff = time() - strtotime($tsmp);
$dt = ’0 seconds ago’;
foreach($diffu as $u => $n){ if($diff>$n) {$dt = floor($diff/(.5*$n)).’ ‘.$u.’ ago’;} }

return $dt;
}

?>

// example output: 10 seconds ago / 90 minutes ago / 16 months ago / 3 years ago

mysql 查询今天，昨天，一周，一月，上月，上周，上年，今年，本季度，上季度的数据

2011-10-21 , Mysql, PHP   Tags: ,

今天

  1. select * from 表名 where to_days(时间字段名) = to_days(now());

昨天

  1. SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) – TO_DAYS( 时间字段名) <= 1

7天

  1. SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 7 DAY) <= date(时间字段名)

近30天

  1. SELECT * FROM 表名 where DATE_SUB(CURDATE(), INTERVAL 30 DAY) <= date(时间字段名)

本月

  1. SELECT * FROM 表名 WHERE DATE_FORMAT( 时间字段名, ‘%Y%m’ ) = DATE_FORMAT( CURDATE( ) , ‘%Y%m’ )

上一月

  1. SELECT * FROM 表名 WHERE PERIOD_DIFF( date_format( now( ) , ‘%Y%m’ ) , date_format( 时间字段名, ‘%Y%m’ ) ) =1

查询本周记录
select * from ht_invoice_information where WEEKOFYEAR(create_date)=WEEKOFYEAR(NOW());
#查询上周记录
select * from ht_invoice_information where create_date>=date_add(now(),interval -(8 + weekday(now())) day)
and create_date<=date_add(now(),interval -(1 + weekday(now())) day);

#或者

select * from `ht_invoice_information` where WEEKOFYEAR(create_date)=WEEKOFYEAR(DATE_SUB(now(),INTERVAL 1 week));
#查询本月数据
select * from ht_invoice_information where MONTH(create_date)=MONTH(NOW()) and year(create_date)=year(now());
#查询上月数据
select * from ht_invoice_information where create_date<=last_day(date_add(now(),interval -1 MONTH))
and create_date>=DATE_FORMAT(concat(extract(year_month from date_add(now(),interval -1 MONTH)),’01′),’%Y-%m-%d’);

#或者

select * from `ht_invoice_information` where MONTH(create_date)=MONTH(DATE_SUB(NOW(),interval 1 month))
and year(create_date)=year(now());
#查询本季度数据
select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(now());
#查询上季度数据
select * from `ht_invoice_information` where QUARTER(create_date)=QUARTER(DATE_SUB(now(),interval 1 QUARTER));
#查询本年数据
select * from `ht_invoice_information` where YEAR(create_date)=YEAR(NOW());
#查询上年数据
select * from `ht_invoice_information` where year(create_date)=year(date_sub(now(),interval 1 year));

PHP 判断字符串只包含英文中文数字的正则表达式

2011-10-02 , PHP   Tags: ,

function isNickname($str){
return preg_match(“/^[\x{4e00}-\x{9fa5}A-Za-z0-9_]+$/u”,$str);
}