-
-
header("Content-type:text/html; charset=utf-8");
-
- class Collection{
- private $_members=array();
- private $_onload;
- private $_isLoaded=false;
-
- public function startLoad(){
- $this->_checkCallback();
- }
-
- public function addItem($obj,$key=NULL){
- $this->_checkCallback();
- if($key){
- if(isset($this->_members[$key])){
- throw new Exception("Key \"$key\" already in use!");
- }else{
- $this->_members[$key]=$obj;
- }
- }else{
- $this->_members[]=$obj;
- }
- }
-
- public function removeItem($key){
- $this->_checkCallback();
- if(isset($this->_members[$key])){
- unset($this->_members[$key]);
- }else{
- throw new Exception("Invalid key \"$key\"!");
- }
- }
-
- public function getItem($key){
- $this->_checkCallback();
- if(isset($this->_members[$key])){
- return $this->_members[$key];
- }else{
- throw new Exception("Invalid key \"$key\"!");
- }
- }
-
- public function keys(){
- $this->_checkCallback();
- return array_keys($this->_members);
- }
-
- public function length(){
- $this->_checkCallback();
- return sizeof($this->_members);
- }
-
- public function exists($key){
- $this->_checkCallback();
- return (isset($this->_members[$key]));
- }
-
- public function setLoadCallback($functionName,$objOrClass=NULL){
- if($objOrClass){
- $callback=array($objOrClass,$functionName);
- }else{
- $callback=$functionName;
- }
-
- if(!is_callable($callback)){
- /*throw new Exception("$callableName is not callable"."as a parameter to oonload");*/
- echo "$callback is not callable
";
- return false;
- }
-
- $this->_onload=$callback;
- }
-
- private function _checkCallback(){
- if(isset($this->_onload)&&!$this->_isLoaded){
- $this->_isLoaded=true;
- call_user_func($this->_onload,$this);
- }
- }
- }
-
-
|
PHP, Collection
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