Code4R7 questions

Code4R7 answers

• PHP: what are the diff between goto and another control structures like while [duplicate]
• How does rust chrono Duration get number of years or months?
• JavaScript draw using mouse Canvas with 3 axis
• Call to undefined function session_start()
• SQL Query progress using PostgreSQL or My SQL
• Optgroup breaks special characters
• Difference static::class vs get_called_class() and __CLASS__ vs get_class() vs self::class
• How can I check if a user's computer supports Emoji?