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<?php function getPath($id) { if ($id < 100) return "0".DIRECTORY_SEPARATOR; $id = str_pad($id,strlen($id)+(3-strlen($id)%3),"0",STR_PAD_LEFT); $in = array_map(create_function('$x','return ($x >= 1) ? ltrim($x,\'0\') : "0";'),str_split($id,3)); array_pop($in); $in = array_reverse($in); return rtrim(implode(DIRECTORY_SEPARATOR,$in),DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR; } printf("getPath(%d) = %s\n",3,getPath(3)); printf("getPath(%d) = %s\n",300,getPath(300)); printf("getPath(%d) = %s\n",3000,getPath(3000)); printf("getPath(%d) = %s\n",3000000,getPath(3000000)); printf("getPath(%s) = %s\n",3000000000,getPath(3000000000)); for ($i=0;$i < 10;$i++) { $id = rand(); printf("getPath(%d) = %s\n",$id,getPath($id)); }
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