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PHP

Shopro homepage pop-up optimization

Because the length and width of the pop-up window and the picture are not 1:1, the user clicks on the blank space and does not close the pop-up window. You can judge whether to display the pop-up window according to the conditions, for example: the user who has received the coupon will no longer pop up

PHP RSA front and back end encrypted communication

Party B generates a pair of keys (public key and private key), and discloses the public key to Party A. After Party A obtains the public key, it encrypts the data to be transmitted with the public key and sends it to Party B. Party B obtains the public key. After encrypting the data, decrypt it with the private key