虚函数,实现php
1. virtual-function.php
<?php
class ParentClass {
static public function say( $str ) {
static::do_print( $str );
}
static public function do_print( $str ) {
echo "<p>Parent says $str</p>";
}
}
class ChildClass extends ParentClass {
static public function do_print( $str ) {
echo "<p>Child says $str</p>";
}
}
class AnotherChildClass extends ParentClass {
static public function do_print( $str ) {
echo "<p>AnotherChild says $str</p>";
}
}
echo phpversion();
$a=new ChildClass();
$a->say( 'Hello' );
$b=new AnotherChildClass();
$b->say( 'Hello' ); 以上就是虚函数实现php版的内容，更多相关内容请关注PHP中文网（www.php.cn）！
