$code_letter_array = array(); $code_letter_array[] = '0'; $code_letter_array[] = 'A'; $code_letter_array[] = 'B'; $code_letter_array[] = 'C'; $code_letter_array[] = 'D'; $code_letter_array[] = 'E'; $code_letter_array[] = 'F'; $code_letter_array[] = 'G'; $code_letter_array[] = 'H'; $code_letter_array[] = 'I'; $code_letter_array[] = 'J'; $code_letter_array[] = 'K'; $code_letter_array[] = 'L'; $code_letter_array[] = 'M'; $code_letter_array[] = 'N'; $code_letter_array[] = 'O'; $code_letter_array[] = 'P'; $code_letter_array[] = 'Q'; $code_letter_array[] = 'R'; $code_letter_array[] = 'S'; $code_letter_array[] = 'T'; $code_letter_array[] = 'U'; $code_letter_array[] = 'V'; $code_letter_array[] = 'W'; $code_letter_array[] = 'X'; $code_letter_array[] = 'Y'; $code_letter_array[] = 'Z';