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TDC 2016 (Florianópolis) - Vá para o próximo nível - Dicas e truques para a certificação PHP (PT-BR)

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In this talk I tried to make the Zend Certification easy for those who doesn't have passed the exam yet. This talk was presented in the TDC 2016 in Florianópolis, Brasil

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TDC 2016 (Florianópolis) - Vá para o próximo nível - Dicas e truques para a certificação PHP (PT-BR)

  1. 1. Globalcode – Open4education Trilha – PHP Vá para o próximo nível - Dicas e truques para a certificação PHP
  2. 2. marabesi @MatheusMarabesi
  3. 3. ZENDSC10X 10/jun
  4. 4. HELP WANTED !
  5. 5. http://phingbrasil.com.br
  6. 6. Who doesn’t want to be certified ?
  7. 7. ????????
  8. 8. $coração = 'Hello'; echo $coração;
  9. 9. class Cächaça { } $cachaça = new Cächaça();
  10. 10. BITWISE
  11. 11. a bitwise operation operates on one or more bit patterns or binary numerals at the level of their individual bits. It is a fast, primitive action directly supported by the processor, and is used to manipulate values for comparisons and calculations
  12. 12. & AND | OR ^ XOR >> RIGHT << LEFT
  13. 13. Bits that are set in both $a AND $b are set. http://php.net/manual/en/language.operators.bitwise.php
  14. 14. & - AND 0 & 0 = 0 0 & 1 = 0 1 & 0 = 0 1 & 1 = 1 print (4 & 8);
  15. 15. Bits that are set in either $a OR $b are set. http://php.net/manual/en/language.operators.bitwise.php
  16. 16. | - OR 0 | 0 = 0 0 | 1 = 1 1 | 0 = 1 1 | 1 = 1 print (2 | 7);
  17. 17. Bits that are set in $a OR $b but not BOTH are set. http://php.net/manual/en/language.operators.bitwise.php
  18. 18. | - XOR 0 ^ 0 = 0 0 ^ 1 = 1 1 ^ 0 = 1 1 ^ 1 = 0 print (3 ^ 9);
  19. 19. 128 64 32 16 8 4 2 1 1 1 1 1 1 1 1 1 255
  20. 20. 128 64 32 16 8 4 2 1 0 0 0 0 0 1 0 0 4 0 0 0 0 1 0 0 0 8 print (4 & 8); & - AND
  21. 21. 128 64 32 16 8 4 2 1 0 0 0 0 0 0 1 0 2 0 0 0 0 0 1 1 1 7 print (2 | 7); | - OR
  22. 22. 128 64 32 16 8 4 2 1 0 0 0 0 0 0 1 1 3 0 0 0 0 1 0 0 1 9 print (3 ^ 9); ^ - XOR
  23. 23. & AND | OR ^ XOR >> RIGHT << LEFT
  24. 24. Shift the bits of $a $b steps to the right (each step means "divide by two") http://php.net/manual/en/language.operators.bitwise.php
  25. 25. bit leftmost / 2 ^ bit rightmost >> - Shift right print (4 >> 6); 4 / 2 ^ 6 = 0
  26. 26. Shift the bits of $a $b steps to the left (each step means "multiply by two") http://php.net/manual/en/language.operators.bitwise.php
  27. 27. bit leftmost * 2 ^ bit rightmost << - Shift left print (7 << 9); 7 * 2 ^ 9 = 3584
  28. 28. & AND | OR ^ XOR >> RIGHT << LEFT
  29. 29. Bits that are set in $a are not set, and vice versa. http://php.net/manual/en/language.operators.bitwise.php
  30. 30. ~ - Not ~x = -x -1 print (~9); ~9 = -9 -1 = -10
  31. 31. exit(253); php execute.php
  32. 32. http://www.phpinternalsbook.com/
  33. 33. STREAMS
  34. 34. $context = stream_context_create([ 'http' => [ 'method' => 'GET' ] ]); print file_get_contents( 'http://api.phpconference.com.br', false, $context );
  35. 35. $context = stream_context_create([ 'http' => [ 'method' => 'POST', 'header' => 'Content-Type: application/x-www-form-urlencoded', 'content' => 'field=value' ] ]); print file_get_contents( 'http://api.tdc2016floripa.com.br', false, $context );
  36. 36. O.O.PObject . Oriented . Programming
  37. 37. LATE STATIC BINDING X SELF
  38. 38. class A { public static function who() { echo __CLASS__; } public static function test() { self::who(); } } class B extends A { public static function who() { echo __CLASS__; } } B::test();
  39. 39. class A { public static function who() { echo __CLASS__; } public static function test() { static::who(); } } class B extends A { public static function who() { echo __CLASS__; } } B::test();
  40. 40. OBJECT CLONING
  41. 41. class A { public $name; } $a = new A(); $b = clone $a; var_dump($a == $b);
  42. 42. class A { public $name; } $a = new A(); $a->name = 'Ana'; $b = clone $a; $b->name = 'Clark'; var_dump($a == $b);
  43. 43. class B { public $lastName; } class A { public $name; public $lastName; public function __construct() { $this->lastName = new B(); } } $a = new A(); $a->lastName->lastName = 'River'; $b = clone $a; $b->lastName->lastName = 'Dom'; var_dump($a == $b);
  44. 44. ARRAY
  45. 45. sort(); rsort(); asort(); ksort(); krsort(); usort();
  46. 46. A K U R ASSOCIATIVE KEY USER REVERSE
  47. 47. sort(); rsort(); asort(); ksort(); krsort(); usort();
  48. 48. array_diff_ukey array_diff_uassoc array_​intersect_​assoc array_​intersect_​uassoc array_​intersect_​ukey
  49. 49. DON’T FORGET !
  50. 50. marabesi @MatheusMarabesi

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