product · inferred from evidence
v4
Version 4 of the Infobip API PHP client or related API.
- infobip-api-php-client 5.0: ObjectSerializer::sanitizeForSerialization undefined method
The interactive-IDE examples were generated against v4 while the 5.0 library had removed those classes and methods. Use the current SmsApi class from the v5 README instead of the obsolete IDE-generated classes (SendSmsApi etc.), and follow