php數組傳值調用與傳址調用

public class ArrayTest { public static void main(String[] args){ Map[] maparray=new Map[3]; for (int i = 0; i < maparray.length; i++) { Map map=new HashMap(); map.put("a", i+"_ajkcz"); map.put("c", "werq_"+i); maparray[i]=map; } System.out.println("++++++++++++++++++++++++"); for (int i = 0; i < maparray.length; i++) { Map map=maparray[i]; Iterator it=map.keySet().iterator(); while(it.hasNext()){ String key=(String) it.next(); System.out.println(key+"\t"+map.get(key) ); } } System.out.println("++++++++++++++++++++++++"); new ArrayCharge().printAndChangeArray(maparray); System.out.println("++++++++++++++++++++++++"); for (int i = 0; i < maparray.length; i++) { Map map=maparray[i]; Iterator it=map.keySet().iterator(); while(it.hasNext()){ String key=(String) it.next(); System.out.println(key+"\t"+map.get(key) ); } } } } class ArrayCharge { public void printAndChangeArray(Map[] maparray){ for (int i = 0; i < maparray.length; i++) { Map map=maparray[i]; map.put("a",i+"________"); } for (int i = 0; i < maparray.length; i++) { Map map=maparray[i]; Iterator it=map.keySet().iterator(); while(it.hasNext()){ String key=(String) it.next(); System.out.println(key+"\t"+map.get(key) ); } } } } 複製代碼 控制台輸出結果： $arraytest=array(); for($i=0;$i<3;$i++){ $child=array(); $child['keystr']='key'.$i; $child['valuestr']='value'.$i; $arraytest[]=$child; } print_r($arraytest); print_r("+++++++++++++++++++++++++"); for($i=0;$i $child=$arraytest[$i]; $child['valuestr']="_________".$i; } print_r($arraytest); print_r("+++++++++++++++++++++++++"); ?> 複製代碼 控制台輸出： $arraytest=array(); for($i=0;$i<3;$i++){ $child=array(); $child['keystr']='key'.$i; $child['valuestr']='value'.$i; $arraytest[]=$child; } print_r($arraytest); print_r("+++++++++++++++++++++++++"); for($i=0;$i $child=&$arraytest[$i]; //注意這裡加了一個指標符號，代表是傳址調用 $child['valuestr']="_________".$i; } print_r($arraytest); print_r("+++++++++++++++++++++++++"); ?> 複製代碼 控制台輸出： Array ( [0] => Array ( [keystr] => key0 [valuestr] => value0 ) [1] => Array ( [keystr] => key1 [valuestr] => value1 ) [2] => Array ( [keystr] => key2 [valuestr] => value2 ) ) +++++++++++++++++++++++++ Array ( [0] => Array ( [keystr] => key0 [valuestr] => _________0 ) [1] => Array ( [keystr] => key1 [valuestr] => _________1 ) [2] => Array ( [keystr] => key2 [valuestr] => _________2 ) )+++++++++++++++++++++++++

