php图片上传使用微秒做文件名，_PHP教程

php 图片上传 使用微秒做文件名，

$m = microtime ();
$mtime = explode(' ' ,$m);
$mtime1 = $mtime[1];
$mtime2 = substr($mtime[0], 2, 6);
$pic_time = "{$mtime1}{$mtime2}";

http://www.bkjia.com/PHPjc/867002.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/867002.htmlTechArticlephp 图片上传 使用微秒做文件名， $m = microtime (); $mtime = explode(' ' ,$m); $mtime1 = $mtime[1]; $mtime2 = substr($mtime[0], 2, 6); $pic_time = "{$mtime1}{$mtime2}";...