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锟斤拷 PHP 5.3.0 锟金，匡拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷态锟斤拷锟斤拷锟洁。锟斤拷锟矫憋拷锟斤拷锟斤拷值锟斤拷锟斤拷为锟截硷拷锟斤拷 self锟斤拷parent 锟斤拷 static锟斤拷
Example #1 锟斤拷态锟斤拷锟斤拷示锟斤拷
<?php
class Foo
{
public static $my_static = 'foo';
public function staticValue() {
return self::$my_static;
}
}
class Bar extends Foo
{
public function fooStatic() {
return parent::$my_static;
}
}
print Foo::$my_static . "\n";
$foo = new Foo();
print $foo->staticValue() . "\n";
print $foo->my_static . "\n"; // Undefined "Property" my_static
print $foo::$my_static . "\n";
$classname = 'Foo';
print $classname::$my_static . "\n"; // As of PHP 5.3.0
print Bar::$my_static . "\n";
$bar = new Bar();
print $bar->fooStatic() . "\n";
?>
</programlisting>
</example>
<example>
<title>锟斤拷态锟斤拷锟斤拷示锟斤拷</title>
<programlisting role="php">
<![CDATA[
<?php
class Foo {
public static function aStaticMethod() {
// ...
}
}
Foo::aStaticMethod();
$classname = 'Foo';
$classname::aStaticMethod(); // 锟斤拷 PHP 5.3.0 锟斤拷
?>