Function password_needs_rehash
Determine if the password hash needs to be rehashed according to the options provided
If the answer is true, after validating the password using password_verify, rehash it.
Parameters summary
| string | $hash | The hash to test | 
| integer | $algo | The algorithm used for new password hashes | 
| array | $options = array() | The options array passed to password_hash | 
Return value summary
| 
			boolean
		 | True if the password needs to be rehashed. | 
