php时间转换问题

[ectwyq]

求教：php如何将时间字符串如:"20080422102312"转换成"2008-04-22-10-23-12"？？？？

[laruence]

$date = preg_replace("/(\d{4})(\d{2})(\d{2})(\d{2})/", "$1-$2-$3-$4", $str);

[laruence]

$date = preg_replace("/(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/", "$1-$2-$3-$4-$5-$6", $str);

[chenling0828]

告诉你一个最笨方法就是截取字符：
<?php
$time = "20080422120021";
$str1 = substr($time,0,4);
$str2 = substr($time,4,2);
$str3 = substr($time,6,2);
$str4 = substr($time,8,2);
$str5 = substr($time,10,2);
$str6 = substr($time,12,2);
echo ($str1."-".$str2."-".$str3." ".$str4."-".$str5."-".$str6);
?>

[chenling0828]

给分吧！绝对有效

[thefirstwind]

嗯嗯，以上方法都对，昨天看到一种方法是用
date_format

参考
http://www.php.net/manual/en/function.date-format.php