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class classname {
public $attribute;
function __get($name) {
return $this->$name;
}
function __set($name, $value){
$this->$name = $value;
}
}
3.´Ë·ÃÎÊÆ÷º¯ÊýµÄÔÀí¾ÍÊÇÕâÑù£ºÖ»Ê¹ÓÃÒ»¶Î´úÂëÀ´·ÃÎÊÌØ¶¨ÊôÐÔ¡£ÓÉÓÚÖ»ÓÐÒ»¸öÈë¿Ú£¬¾Í¿ÉÒÔ¶ÔÒª±£´æµÄÊý¾Ý½øÐмì²é£¬¿ÉÒÔÈ·±£±£´æµÄÊý
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function _set ($name, $value) {
if( ($name == "attribute") && ($value >= 0) && ($value <= 100) ) {
$this->attribute = $value;
}
}
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5.__get(),__set(),__isset(),__unset().
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__isset(),__unset():À´¼ì²éÊôÐÔºÍɾ³ýÊôÐÔ¡£
6.__get()Óë__set(),__isset()Óë__unset()µÄÒ»°ãÌí¼Ó·½·¨¡£
//__get()·½·¨ÓÃÀ´»ñȡ˽ÓÐÊôÐÔ.
private function __get($property_name) {
if (isset($this -> property_name)) {
return($this -> $property_name);
} else {
return(NULL);
}
}
//__set()·½·¨ÉèÖÃ˽ÓÐÊôÐÔ
private function __set($property_name,$value) {
$this -> $property_name = $value;
}
//__isset()·½·¨¿ÉÒÔÉèΪ˽ÓÐ
private function __isset($property_name) {
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