php 时间格式化

函数名：date_format

参数： $string 时间源，可以是2006-04-24 09:56:07这种格式，$format要格式化的形式，如%Y年%m月%d日%H时%M分%S秒看需要删改

示例：<?php

echo date_format($rs['time'],'%Y年%m月%d日%H时%M分%S秒')

?>

function date_format($string, $format="%b %e, %Y", $default_date=null)

{

if (substr(php_OS,0,3) == 'WIN') {

$_win_from = array ('%e', '%T', '%D')

$_win_to = array ('%#d', '%H:%M:%S', '%m/%d/%y')

$format = str_replace($_win_from, $_win_to, $format)

}

if($string != '') {

return strftime($format, smarty_make_timestamp($string))

} elseif (isset($default_date) &&$default_date != '') {

return strftime($format, smarty_make_timestamp($default_date))

} else {

return

}

} function smarty_make_timestamp($string)

{

if(empty($string)) {

$string = "now"

}

$time = strtotime($string)

if (is_numeric($time) &&$time != -1)

return $time // is mysql timestamp format of YYYYMMDDHHMMSS?

if (PReg_match('/^\d{14}$/', $string)) {

$time = mktime(substr($string,8,2),substr($string,10,2),substr($string,12,2),

substr($string,4,2),substr($string,6,2),substr($string,0,4)) return $time

}// couldn't recognize it, try to return a time

$time = (int) $string

if ($time >0)

return $time

else

return time()

这个，你只能把这个读取出来的数据当字符串处理了！！

用空格去分解这个字段，保存在数组里，然后提取第一个为月份，第二个为日期，第三个为年份，第四个为小时和分钟，已经上下午

$time = $rs["lastlogin"]

$times = explode(" ",$time)

$month = $times[0]

$day = $times[1]

$year = $times[2]

$hour = substr($times[3],0,2)

$minute = substr($times[3],3,2)

if(substr($times[3],5,1)=='P')

{

$hour = intval($hour)

if($hour<12)

{

$hour += 12

}

}

$realTime = $year."-".$month."-"."day"." ".$hour.":".$minute.":00"

echo $realTime

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