(PHP 7 >= 7.2.0, PHP 8)
sodium_compare — Compare large numbers
Compare two strings as if they were arbitrary-length, unsigned little-endian integers, without side-channel leakage.
string1Left operand
string2Right operand
Returns -1 if string1 is less than string2.
Returns 1 if string1 is greater than string2.
Returns 0 if both strings are equal.