- Replace dynamic current time test with fixed datetime format parsing
- Change DateTime::createFromFormat call to parse specific datetime string '2024-02-03 04:05:06'
- Update expected output from variable format to fixed '2024-02-03 04:05:06'
- Remove variable timestamp output and replace with predictable datetime string
- Modify static call test to use explicit datetime string instead of current time
- Add explicit string casting for Stringable objects when passed to internal string functions
- Update numeric values with explicit (string) casts before using in string functions
- Adjust test expectations to match strict type behavior for string operations
韩天峰