String + NULL In SQL Creates WHAT?!
SQL string concatenation with NULL will shock you! Adding NULL to strings creates something you'd NEVER expect. This breaks string logic! Watch!
#sql #sqltricks #database #sqltutorial #stringconcatenation #nullhandling #sqlquiz #codingchallenge #sqlshorts #sqlbugs #databasequeries #sqlwtf
To double quote or not, that's the question!
π #PHP string interpolation occurs at compile-time, not runtime
ποΈ #SingleQuotes vs #DoubleQuotes debate: negligible performance difference
π» #OPcache is crucial for optimizing PHP performance
π§ #Lexer handles string interpolation during tokenization
π§ #AST and opcode generation treat single and double quotes similarly
π #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
PrecisionSQL
zartom
Sascha Stumpler
michabbb