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[SW기술] 자바의 ArrayList PHP로 구현

칭찬해주십시요  ㅎㅎ  

자바의  ArrayList가  그리워  php로  한번  구현해  봤습니다...  

<?php  

//  arraylist.php  

class  ArrayList  {  

        private  $arr  =  array();                //  이곳에  쌓임  
        private  $index;  

          
        function  __construct()  {  
                $this->index  =  0;  
        }  

          
        //  추가  
        function  add($element)  {  

                $this->arr[$this->index++]  =  $element  ;  

        }  

        function  indexOf($element)  {  

                for  ($i=0;  $i  <  sizeof($this->arr)  ;  $i++)  {  
                          
                        //  변수가  객체인지  확인한다.  
                        if  (is_object($this->arr[$i])  )  {  

                                if  (get_class($this->arr[$i])  ==  get_class($element)  )  
                                {  
                                        return  $i;  
                                }  
                        }  
                        else  {  

                                if  (  $this->arr[$i]  ==  $element  )  
                                {  
                                        return  $i;  
                                }  

                        }  

                }  

        }  


        function  remove($index)  {  

                unset($this->arr[$index]);  

                $f  =  array();  

                $z  =  0;  

                for  ($i=0;  $i  <  $this->size()+1;  $i++)  {  
                          
                        if  (isset($this->arr[$i])  )  {  
                                $f[$z++]  =  $this->arr[$i]  ;  
                        }  else  {  
                                continue;  
                        }  

                }  

                $this->arr  =  $f;  

        }  

          
        function  size()  {  
                return  sizeof($this->arr);  
        }  


        function  get($index)  {  
                return  $this->arr[$index];  
        }  

}  

?>  



사용법은  자바랑  비슷합니다...    일단  객체  만들어주시구여..  

$array  =  new  ArrayList  ;  

  변수나  객체를  넣을수  있습니다.  
$array->add($a)        //  변수라던지  아니면  객체모두  

내부적으로  0  1  2  3  이렇게  차곡차곡  쌓입니다...  

젤  중요한건    $array->remove(index번호)    이놈인데  삭제하고픈  요소의  인덱스번호를  

넣어주시면  배열에서  삭제됩니다...  그리고  번호가  순차적으로  다시  정렬됩니다...  

배열  중간이  땜방이  되지  않습니다  ㅎㅎ    테스트는  해보았구여  객체  변수  모두  됩니다...  

그외  

$array->indexOf(변수명이나  객체)    변수명이나  객체변수를  집어넣으면  

배열에서  어디에  저장되어있는지  인덱스를  반환합니다...  

$array->size()            //  배열요소의  총개수를  반환합니다..  

$array->get(인덱스번호)            //  인덱스번호를  집어넣으면  해당하는  요소의  값을  
                                                                                //  반환합니다...  


그런데  완벽하게  테스트해보진  않아서  어디에  버그가  있을지는  ㅠ  

사실은  몇시간동안  삽질을  해서  에너지  고갈로  이글을  마지막으로  좀  쉴려고  합니다...  

php5에서부터  완벽하게  객체지향이  지원된다고  했는데  막상  이렇게  자바  비슷하게  구현되니  왼지  몸으로  php의  위력이  몸으로  실감이  되네여  ㅎㅎㅎㅎ  

이상  잡소리였습니다  ㅎㅎ  

좋은  하루되세요...  ^  ^  
[이  게시물은  PHPSCHOOL님에  의해  2007-08-27  21:36:15  포럼에서  이동  됨]

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