Anyone Convert me this code into PHP

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its a C# code . plz convert this code to PHP.

PHP Syntax (Toggle Plain Text)
string hex_code; if ((FileUpload1.PostedFile != null) && (FileUpload1.PostedFile.ContentLength > 0)) { FileStream fls = new FileStream(FileUpload1.PostedFile.FileName, FileMode.Open, FileAccess.Read); byte[] blob = new byte[fls.Length]; fls.Read(blob, 0, System.Convert.ToInt32(fls.Length)); hex_code = ByteArrayToString(blob);
string hex_code; if ((FileUpload1.PostedFile != null) && (FileUpload1.PostedFile.ContentLength > 0)) { FileStream fls = new FileStream(FileUpload1.PostedFile.FileName, FileMode.Open, FileAccess.Read); byte[] blob = new byte[fls.Length]; fls.Read(blob, 0, System.Convert.ToInt32(fls.Length)); hex_code = ByteArrayToString(blob);