From: Andi Gutmans <andi@php.net>
Date: Sat, 9 Mar 2002 16:25:51 +0000 (+0000)
Subject: - Add the original example script to the CVS so that it's always available.
X-Git-Tag: help~115
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=122970574367425e41bc72ee9f09d9aadf546eea;p=php

- Add the original example script to the CVS so that it's always available.
---

diff --git a/Zend/tests/zend2.php b/Zend/tests/zend2.php
new file mode 100644
index 0000000000..f4466b73e2
--- /dev/null
+++ b/Zend/tests/zend2.php
@@ -0,0 +1,339 @@
+Example 1: A singleton (static members)
+=======================================
+
+<?php
+
+	class Counter {
+		var $counter = 0;
+		
+		function increment_and_print()
+		{
+				print ++$this->counter;
+				print "\n";
+		}	
+	}
+	
+	
+	class SingletonCounter {
+		static $m_instance = NULL;
+		
+		function Instance()
+		{
+				if (self::$m_instance == NULL) {
+					self::$m_instance = new Counter();
+				}
+				return self::$m_instance;
+		}	
+	}
+	
+	SingletonCounter::Instance()->increment_and_print();
+	SingletonCounter::Instance()->increment_and_print();
+	SingletonCounter::Instance()->increment_and_print();
+	
+?>
+
+Example 2: Factory method (derefencing objects returned from functions)
+=======================================================================
+
+<?php
+	
+	class Circle {
+		function draw()
+		{
+			print "Circle\n";	
+		}
+	}
+	
+	class Square {
+		function draw()
+		{
+			print "Square\n";	
+		}
+	}
+	
+	function ShapeFactoryMethod($shape)
+	{
+		switch ($shape) {
+			case "Circle":
+				return new Circle();
+			case "Square":
+				return new Square();
+		}	
+	}
+	
+	ShapeFactoryMethod("Circle")->draw();
+	ShapeFactoryMethod("Square")->draw();
+	
+	
+?>
+
+Example 3: Nested class
+=======================
+
+<?php
+	
+	class Database {
+		class MySQL {
+			var $host = "";
+			
+			function db_connect($user) {
+				print "Connecting to MySQL database '$this->host' as $user\n";
+			}
+		}
+		
+		class Oracle {
+			var $host = "localhost";
+			
+			function db_connect($user) {
+				print "Connecting to Oracle database '$this->host' as $user\n";
+			}
+			
+		}	
+	}
+	
+	$MySQL_obj = new Database::MySQL();
+	$MySQL_obj->db_connect("John");
+	
+	$Oracle_obj = new Database::Oracle();
+	$Oracle_obj->db_connect("Mark");
+
+	unset($MySQL_obj);
+	unset($Oracle_obj);
+?>
+	
+Example 3: Nested class suitable for a PEAR like hierarchy
+==========================================================
+
+<?php
+	
+	class DB::MySQL {
+		var $host = "";
+		
+		function db_connect($user) {
+			print "Connecting to MySQL database '$this->host' as $user\n";
+		}
+	}
+		
+	class DB::Oracle {
+		var $host = "localhost";
+		
+		function db_connect($user) {
+			print "Connecting to Oracle database '$this->host' as $user\n";
+		}
+		
+	}	
+	
+	$MySQL_obj = new DB::MySQL();
+	$MySQL_obj->db_connect("Susan");
+	
+	$Oracle_obj = new DB::Oracle();
+	$Oracle_obj->db_connect("Barbara");
+	
+?>
+
+Example 4: Class constants and class scope
+==========================================
+
+<?php
+
+	class ErrorCodes {
+		const FATAL = "Fatal error\n";
+		const WARNING = "Warning\n";
+		const INFO = "Informational message\n";
+		
+		function print_fatal_error_codes()
+		{
+			print "FATAL = " . FATAL;
+			print "self::FATAL = " . self::FATAL;
+		}
+	}
+	
+	/* Call the static function and move into the ErrorCodes scope */
+	ErrorCodes::print_fatal_error_codes();
+
+?>
+
+Example 5: Regular object method using both local and global functions
+======================================================================
+
+<?php
+
+	class HelloWorld {
+		const HELLO_WORLD = "Hello, World!\n";
+		
+		function get_hello_world()
+		{
+			return HELLO_WORLD;
+		}
+		
+		function length_of_hello_world()
+		{
+			$str = get_hello_world();
+			return strlen($str);
+		}	
+	}
+	
+	$obj = new HelloWorld();
+	print "length_of_hello_world() = " . $obj->length_of_hello_world();
+	print "\n";
+?>
+
+Example 6: Multiple derefencing of objects returned from methods
+================================================================
+
+<?php
+
+
+	class Name {
+		function Name($_name)
+		{
+			$this->name = $_name;	
+		}
+		
+		function display()
+		{
+			print $this->name;
+			print "\n";
+		}
+	}
+	
+	class Person {
+		function Person($_name, $_address)
+		{
+			$this->name = new Name($_name);
+		}
+		
+		function getName()
+		{
+			return $this->name;	
+		}
+	}	
+
+	$person = new Person("John", "New York");
+	print $person->getName()->display();
+	
+?>
+
+Example 7: Exception handling
+=============================
+
+<?
+	class MyException {
+		function MyException($_error) {
+			$this->error = $_error;	
+		}
+		
+		function getException()
+		{
+			return $this->error;	
+		}
+	}
+	
+	function ThrowException()
+	{
+		throw new MyException("'This is an exception!'");	
+	}
+	
+	
+	try {
+	} catch (MyException $exception) {
+		print "There was an exception: " . $exception->getException();
+		print "\n";
+	}
+	
+	try {
+		ThrowException();	
+	} catch (MyException $exception) {
+		print "There was an exception: " . $exception->getException();
+		print "\n";
+	}
+	
+?>
+
+Example 8: __clone()
+===================
+
+<?
+	class MyCloneable {
+		static $id = 0;
+		
+		function MyCloneable()
+		{
+			$this->id = self::$id++;
+		}
+		
+		function __clone()
+		{
+			$this->name = $clone->name;
+			$this->address = "New York";
+			$this->id = self::$id++;
+		}
+	}
+	
+
+	
+	$obj = new MyCloneable();
+
+	$obj->name = "Hello";
+	$obj->address = "Tel-Aviv";
+	
+	print $obj->id;
+	print "\n";
+	
+	$obj = $obj->__clone();
+	
+	print $obj->id;
+	print "\n";
+	print $obj->name;
+	print "\n";
+	print $obj->address;
+	print "\n";
+?>
+
+Example 9: Unified constructors
+===============================
+
+<?
+
+	class BaseClass {
+		function __construct()
+		{
+			print "In BaseClass constructor\n";	
+		}
+	}
+	
+	class SubClass extends BaseClass {
+		function __construct()
+		{
+				parent::__construct();
+				print "In SubClass constructor\n";	
+		}
+	}
+	
+	$obj = new BaseClass();
+	
+	$obj = new SubClass();
+	
+?>
+
+Example 10: Destructors
+=======================
+
+<?php
+
+class MyDestructableClass {
+	function __construct()
+	{
+		print "In constructor\n";
+		$this->name = "MyDestructableClass";
+	}	
+	
+	function __destruct()
+	{
+		print "Destroying " . $this->name . "\n";
+	}	
+}
+
+$obj = new MyDestructableClass();
+
+?>