PHP: The good, the bad and the ugly

Transcript

1. php the good, the bad & the ugly ?> <?
2. This is a rant!
3. the good
4. (...)
5. GoodThingsToSay::find("php"); // []
6. the bad
7. The PHP hammer
8. NOT predictable
9. What’s wrong and what’s not? $foo->nonExistent // Warning $foo::nonExistent // Fatal error
10. Type hinting function foo(string $s) {} foo("hello world"); // PHP Catchable fatal error: Argument 1 passed to foo() must be an instance of string, string given
11. empty() “ A variable is considered empty if it does not exist or if its value equals FALSE” $var = ""; empty($var); // true, because "" == false
12. parse_str() parse_str("first=one&second=two"); echo $first; // one echo $second; // two
13. NOT consistent
14. htmlentities / html_entity_decode strpos / str_rot13 php_uname / phpversion base64_encode / urlencode, gettype / get_class underscores or not?
15. array_diff array_fill array_filter count shuffle sort array_* or not?
16. ascii2ebcdic bin2hex deg2rad strtolower strtotime “to” or “2”?
17. array_filter($input, $callback) array_map($callback, $input) strpos($haystack, $needle array_search($needle, $haystack) Argument order
18. NOT reliable
19. json_decode("null"); // null json_decode("invalid json"); // null json_decode
20. if (strpos("hello, world!", "hello")) { echo "found!"; } else { echo "not found :("; } // not found :( array_search, strpos
21. the ugly
22. demo!
23. Not just a rant :)
24. the good
25. New stuff ★ Namespaces ★ Closures ★ Traits ★ Better syntax
26. New ecosystem
27. New ecosystem
28. Conclusions ★ If you can, don’t use it! ★ If you have to: • know your enemy :) • take advantage of the new goodness