PHP v5.3+ Features

Overview of main features from PHP v5.3 until current v5.6

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1. PHP v5.3+ FEATURES Michael Bui (FB & TW: MichaelBui2812)
2. PHP v5.3 • “ereg” deprecated • SPL always enabled • Reflection always enabled • Magic methods ◦ __invoke() ◦ __callStatic() • Performance improved
3. PHP v5.3 • Namespace ◦ PSR-0 ◦ Composer ◦ For classes, functions and constants • Import classes ◦ “use” keyword ◦ relative & absolute namespaces • Closures
4. PHP v5.4 • PHP_BINARY constant • Array to string conversions will trigger a notice • Array callbacks: ◦ [$obj, ‘method’] ◦ [‘ClassName’, ‘method’] • Memory & performance improved
5. PHP v5.4 • Traits ◦ “compiler level” copy-n-paste (literally) ◦ “insteadof” & “as” to solve collisions • Closures ◦ Support “$this” ◦ Re-bind “$this” • Short echo tags “<?=...?>” always work • Binary numbers (0b...)
6. PHP v5.4 (Cont.) • Short array syntax: ◦ [‘a’=>1,’b’=>2] === array(‘a’=>1,’b’=>2) ◦ Array dereferencing: getArray()[0]; • Initiation time access ◦ (new Classname())->method() • Dynamic method calls: ◦ ClassName::{$var}() ◦ (new ClassName())->{$var}()
7. PHP v5.5 • RegExp /e modifier deprecated • Mysql extension officially deprecated • boolval() • empty() support any expression • OPCache built-in
8. PHP v5.5 • “finally” supported • Fully qualified classname constant ◦ ClassName::CLASS • Literal Dereferencing ◦ [‘a’,’b’,’c’][1] will return ‘b’ • “foreach” support “list()” ◦ foreach ($records as list($name, $email)) {} • Generators & Co-routines
9. PHP v5.6 • Import functions & constants ◦ use function Name\Spaced\method; ◦ use const Name\Spaced\CONSTANT; • Scalar expressions supported in ◦ Constants: const FOO = self::BAR . “!”; ◦ Class properties: public $a = 1 + 1; ◦ Function arguments: function f($a = 1 + 1) {} ◦ … • __debugInfo()
10. PHP v5.6 (cont.) • Variadic functions ◦ Referencing ◦ Type hinting • Argument unpacking • Exponent operator (**) • Upload more than 2GB
11. ONE MORE THING...
12. THANK YOU! Michael Bui (FB & TW: MichaelBui2812)