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php 图片上传 使用微秒做文件名,

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Release: 2016-06-13 09:26:46
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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}";

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