Symmetric encryption and decryption functions of API interfaces

I used PHP to write an encryption function and the corresponding decryption function. When PHP calls the PHP interface, it is okay, but when front-end ajax calls my PHP interface, ajax parameters cannot be encrypted, because the frontend cannot use PHP functions at all. Do I use js to rewrite my PHP encryption functions? Even if you write... I used PHP to write an encryption function and the corresponding decryption function. When PHP calls the PHP interface, it is okay, but when front-end ajax calls my PHP interface, ajax parameters cannot be encrypted, because the frontend cannot use PHP functions at all. Do I use js to rewrite my PHP encryption functions? Even if you write it out, it is insecure to expose the js source code. do you have any good solutions? Is there a solution that allows ajax and PHP to call authorized calls?

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I used PHP to write an encryption function and the corresponding decryption function. When PHP calls the PHP interface, it is okay, but when front-end ajax calls my PHP interface, ajax parameters cannot be encrypted, because the frontend cannot use PHP functions at all. Do I use js to rewrite my PHP encryption functions? Even if you write it out, it is insecure to expose the js source code. do you have any good solutions? Is there a solution that allows ajax and PHP to call authorized calls?

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