TDC 2016 (Florianópolis) - Vá para o próximo nível - Dicas e truques para a certificação PHP (PT-BR)
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The document covers various aspects of PHP programming, including tips for certification, bitwise operations, and object-oriented programming. It provides examples of bitwise operations, including AND, OR, and XOR, along with explanations of shifts and logical negation. Additionally, it discusses object cloning and array sorting functions in PHP.
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TDC 2016 (Florianópolis) - Vá para o próximo nível - Dicas e truques para a certificação PHP (PT-BR)
- 1. Globalcode – Open4education Trilha – PHP Vá para o próximo nível - Dicas e truques para a certificação PHP
- 10. Who doesn’t want to be certified ?
- 13. ????????
- 18. $coração = 'Hello'; echo $coração;
- 20. class Cächaça { } $cachaça = new Cächaça();
- 21. BITWISE
- 23. 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
- 24. & AND | OR ^ XOR >> RIGHT << LEFT
- 25. Bits that are set in both $a AND $b are set. http://php.net/manual/en/language.operators.bitwise.php
- 26. & - AND 0 & 0 = 0 0 & 1 = 0 1 & 0 = 0 1 & 1 = 1 print (4 & 8);
- 27. Bits that are set in either $a OR $b are set. http://php.net/manual/en/language.operators.bitwise.php
- 28. | - OR 0 | 0 = 0 0 | 1 = 1 1 | 0 = 1 1 | 1 = 1 print (2 | 7);
- 29. Bits that are set in $a OR $b but not BOTH are set. http://php.net/manual/en/language.operators.bitwise.php
- 30. | - XOR 0 ^ 0 = 0 0 ^ 1 = 1 1 ^ 0 = 1 1 ^ 1 = 0 print (3 ^ 9);
- 32. 128 64 32 16 8 4 2 1 1 1 1 1 1 1 1 1 255
- 33. 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
- 34. 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
- 35. 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
- 36. & AND | OR ^ XOR >> RIGHT << LEFT
- 37. 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
- 38. bit leftmost / 2 ^ bit rightmost >> - Shift right print (4 >> 6); 4 / 2 ^ 6 = 0
- 39. 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
- 40. bit leftmost * 2 ^ bit rightmost << - Shift left print (7 << 9); 7 * 2 ^ 9 = 3584
- 41. & AND | OR ^ XOR >> RIGHT << LEFT
- 42. Bits that are set in $a are not set, and vice versa. http://php.net/manual/en/language.operators.bitwise.php
- 43. ~ - Not ~x = -x -1 print (~9); ~9 = -9 -1 = -10
- 47. STREAMS
- 49. $context = stream_context_create([ 'http' => [ 'method' => 'GET' ] ]); print file_get_contents( 'http://api.phpconference.com.br', false, $context );
- 50. $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 );
- 52. O.O.PObject . Oriented . Programming
- 54. 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();
- 55. 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();
- 56. OBJECT CLONING
- 57. class A { public $name; } $a = new A(); $b = clone $a; var_dump($a == $b);
- 58. class A { public $name; } $a = new A(); $a->name = 'Ana'; $b = clone $a; $b->name = 'Clark'; var_dump($a == $b);
- 59. 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);
- 60. ARRAY
- 65. DON’T FORGET !