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// 根据路径建目录
function genateDirs($path) {
$dirArr = explode('/', $path);
$fullpath = '';
foreach($dirArr as $dir) {
$fullpath .= $dir.'/';
if(file_exists($fullpath)) continue;
mkdir($fullpath);
}
}
$path = 'my/yh/11';
genateDirs($path);