1Hardgeneralโฑ 45sHow does PHP's OPcache improve performance?๐โผAIt compresses HTML outputBIt caches precompiled bytecode of PHP scripts in shared memory, avoiding re-parsing and re-compiling on every requestCIt caches database query results automaticallyDIt only affects CLI scripts
2Hardgeneralโฑ 45sWhat is the difference between `==` loose comparison pitfalls with strings like "0e123" and "0e456" in older PHP versions?๐โผAThey always compare as strings correctly regardless of versionBPHP historically interpreted such numeric-looking strings as scientific notation and compared them as equal numbers ("magic hashes"), a known security issue in versions before PHP 8CThey always throw a TypeErrorDThey only apply to arrays