ZEND PHP 5 Certification STUDY GUIDE

122 ” Object Oriented Programming in PHP
["baz"]=>
string(3) "bat"
["qux"]=>
string(5) "bingo"
}
// Output from sub-class "bar":
array(2) {
["foo"]=>
string(3) "bar"
["baz"]=>
string(3) "bat"
}
// Output from stand-alone class "baz":
array(1) {
["foo"]=>
string(3) "bar"
}
Declaring and Accessing Properties
Properties are declared in PHP using one of the PPP operators, followed by their
name:
class foo {
public $bar;
protected $baz;
private $bas;
public $var1 = "Test"; // String
public $var2 = 1.23; // Numeric value
public $var3 = array (1, 2, 3);
}
Licensed to 482634 - Amber Barrow (itsadmin@deakin.edu.au)
Note that, like a normal variable, a class property can be initialized while it is being
declared. However, the initialization is limited to assigning values (but not by
evaluating expressions). You can’t, for example, initialize a variable by calling a func-