这个知识会在文件上传等场合用到，还没学面向对象，现在用函数形式呈献给各位，代码都做了备注，有不懂得可以在线提问。
php /** * Created by PhpStorm. * User: Administrator * Date: 2016/9/19 0019 * Time: 19:47 */ function rdname(){ $t = getdate(); $year=$t['year']; $month = $t['mon']<10? "0".$t['mon']:$t['mon']; $day = $t['mday']>9?$t['mday']:"0".$t['mday']; $hour= $t['hours']>9?$t['hours']:"0".$t['hours']; $min = $t['minutes']>9?$t['minutes']:"0".$t['minutes']; $sec = $t['seconds']>9?$t['seconds']:"0".$t['seconds']; $randnum=mt_rand(1000,9999);//获取随机的4个数字 $randname=$year.$month.$day.$hour.$min.$sec.$randnum;//把年月日时分和随机数拼接起来 return $randname;//返回新的名字 } $newname=rdname(); echo $newname; ?>php /** * Created by PhpStorm. * User: Administrator * Date: 2016/9/19 0019 * Time: 19:47 */ function rdname(){ $t = getdate(); $year=$t['year']; $month = $t['mon']<10? "0".$t['mon']:$t['mon']; $day = $t['mday']>9?$t['mday']:"0".$t['mday']; $hour= $t['hours']>9?$t['hours']:"0".$t['hours']; $min = $t['minutes']>9?$t['minutes']:"0".$t['minutes']; $sec = $t['seconds']>9?$t['seconds']:"0".$t['seconds']; $randnum=mt_rand(1000,9999);//获取随机的4个数字 $randname=$year.$month.$day.$hour.$min.$sec.$randnum;//把年月日时分和随机数拼接起来 return $randname;//返回新的名字 } $newname=rdname();//把返回的名字赋值给$newname
echo $newname; ?>
效果展示：
