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Design Patterns PHP

DesignPatternsPHPThis is a collection of knowndesign patternsand some sample code how to implement them in PHP. Every pattern has a small list of examples (most of them from Zend Framework, Symfony2 or Doctrine2 as I’m most familiar with this software).
I think the problem with patterns is that often people do know them but don’t know when to apply which. Patterns The patterns can be structured in roughly three different categories. Please click on the title of every pattern’s page for a full explanation of the pattern on Wikipedia. 1. Creational1.1. Abstract Factory1.2. Builder1.3. Factory Method1.4. Multiton1.5. Pool1.6. Prototype1.7. Simple Factory1.8. Singleton1.9. Static Factory2. Structural2.1. Adapter / Wrapper2.2. Bridge2.3. Composite2.4. Data Mapper2.5. Decorator2.6. Dependency Injection2.7. Facade2.8. Fluent Interface2.9. Flyweight2.10. Proxy2.11. Registry

MySQL 5.6 Reference Manual

Zend Certified PHP Engineer Exam: 200-550

QUESTION: 1
What is the output of the following code? echo '1' . (print '2') + 3;
A. 123
B. 213
C. 142
D. 214
E. Syntax error
Answer: D
QUESTION: 2
What is the output of the following code?
$a = 3; switch ($a) {
case 1: echo 'one'; break; case 2: echo 'two'; break; default: echo 'four'; break; case 3: echo 'three'; break;
}
A. one B. two C. three D. four
Answer: C

QUESTION: 3
What is "instanceof" an example of?
A. a boolean
B. an operator
C. a function
D. a language construct E. a class magic
Answer: B QUESTION: 4 Which of the following may be used in conjunction with CASE inside a SWITCH statement? A. A scalar
B. An expression 
C. A boolean
D. All of the above
Answer: D
QUESTION: 5
What is the output of the following code? $a = 'a'; $b = 'b';
echo isset($c) ? $a.$b.$c : ($c = 'c').'d';
A. abc B. cd C. Od
Answer: B

QUESTION: 6
Which of the following are valid identifiers? (Choose 3)
A. function 4Y…