crypt(), password_hash(), and password_verify()

Documentation for crypt() and password_verify() should be updated to say that password_verify() supports hashes created with crypt() because I was actually unaware of this. password_hash() documentation says: "password_hash() is compatible with crypt(). Therefore, password hashes created by crypt() can be used with password_hash()." Which doesn't make sense since password_hash() only creates hashes. Also crypt() doesn't support Argon2 hashes. I believe this was suppose to be added to the password_verify() documentation but ended up on the wrong page. Also the crypt() documentation for CRYPT_EXT_DES says: The "salt" is a 9-character string consisting of an underscore followed by 4 bytes of iteration count and 4 bytes of salt. These are encoded as printable characters, 6 bits per character, least significant character first. This should be: The "salt" is a 9-character string consisting of an underscore followed by 4 characters of iteration count and 4 characters of salt. Each of these 4 characters encode 24 bits, least significant character first. See https://en.wikipedia.org/wiki/Crypt_(C)#BSDi_extended_DES-based_scheme: "BSDi extended the salt to 24 bits and made the number of rounds variable (up to 2^24-1)." Huh that section had the same error and it's been like that since August 2012. Anyway I fixed it there too.