JavaScript basic: Concatenate two strings except their first character - w3resource
GitHub - magnetikonline/php-string-concatenate-benchmark: Trival PHP string concatenation method benchmarks, proving that your time is better spent elsewhere.
concat space in php codeigniter not working - Stack Overflow
PHP String Concatenation
How to Concatenate two or more string in PHP , Combining Two Strings in PHP - PHPGURUKUL
Do you guys use Template Strings when embedding PHP in HTML or do you concatenate the markup with the dynamic code? : r/PHP