- Provide the value for PAYTM_MERCHANT_KEY in /lib/config_paytm.php file. (The value for MERCHANT_KEY will be provided after the onboarding process is completed).
- The generateChecksum.php file uses the /lib/encdec_paytm.php file and provides the module to generate the checksum. Copy these files to the location on your server which will be used for the Checksum Generation URL.
- The verifyChecksum.php file uses the /lib/encdec_paytm.php file and provides the module to verify the checksum. Copy these files to the location on your server which will be used for the Checksum Verify URL.
- Copy the /lib folder into the same directory as the generateChecksum.php and verifyChecksum.php.
- getChecksumFromString : For generating the checksum
- verifychecksum_eFromStr : For verifing the checksum