To double quote or not, that's the question!

🔍 #PHP string interpolation occurs at compile-time, not runtime

🏎️ #SingleQuotes vs #DoubleQuotes debate: negligible performance difference

💻 #OPcache is crucial for optimizing PHP performance

🔧 #Lexer handles string interpolation during tokenization

🧠 #AST and opcode generation treat single and double quotes similarly

📊 #StringConcatenation options: interpolation, comma separation, or dot operator

Key takeaway: Use the latest #PHP version, enable #OPcache, and choose quotes based on readability, not micro-optimizations.

https://dev.to/realflowcontrol/too-double-quote-or-not-thats-the-question-78l