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<?php $number = 'asdzxc1234567890'; echo substr($number, 0, 7) . '='. hash('sha256', $number) . PHPEOL; echo substr($number, 0, 7) . '='. hash('sha256', $number) . PHPEOL; echo substr($number, 0, 7) . '='. hash('sha256', $number) . PHPEOL; echo substr($number, 0, 7) . '='. hash('sha256', $number) . PHPEOL; echo substr($number, 0, 7) . '='. hash('sha256', $number) . PHPEOL; echo substr($number, 0, 7) . '='. hash('sha256', $number) . PHPEOL; echo substr($number, 0, 7) . '='. hash('sha256', $number) . PHPEOL; echo substr($number, 0, 7) . '='. hash('sha256', $number) . PHPEOL; echo substr($number, 0, 7) . '='. hash('sha256', $number) . PHPEOL; echo substr($number, 0, 7) . '='. hash('sha256', $number) . PHPEOL; echo substr($number, 0, 7) . '='. hash('sha256', $number) . PHPEOL; echo substr($number, 0, 7) . '='. hash('sha256', $number) . PHPEOL; echo substr($number, 0, 7) . '='. hash('sha256', $number) . PHPEOL;