php数组传值调用与传址调用

3. public class ArrayTest {

4. public static void main(String[] args){
5. Map[] maparray=new Map[3];
6. for (int i = 0; i Map map=new HashMap();
7. map.put("a", i+"_ajkcz");
8. map.put("c", "werq_"+i);
9. maparray[i]=map;
10. }
12. System.out.println("++++++++++++++++++++++++");
13. for (int i = 0; i Map map=maparray[i];
14. Iterator it=map.keySet().iterator();
15. while(it.hasNext()){
16. String key=(String) it.next();
17. System.out.println(key+"\t"+map.get(key) );
18. }
19. }
21. System.out.println("++++++++++++++++++++++++");
22. new ArrayCharge().printAndChangeArray(maparray);
25. System.out.println("++++++++++++++++++++++++");
26. for (int i = 0; i Map map=maparray[i];
27. Iterator it=map.keySet().iterator();
28. while(it.hasNext()){
29. String key=(String) it.next();
30. System.out.println(key+"\t"+map.get(key) );
31. }
32. }
33. }
34. }

35. class ArrayCharge {

36. public void printAndChangeArray(Map[] maparray){
37. for (int i = 0; i Map map=maparray[i];
38. map.put("a",i+"________");
39. }
41. for (int i = 0; i Map map=maparray[i];
42. Iterator it=map.keySet().iterator();
43. while(it.hasNext()){
44. String key=(String) it.next();
45. System.out.println(key+"\t"+map.get(key) );
46. }
47. }
48. }
49. }

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控制台输出结果：

2. $arraytest=array();
3. for($i=0;$i $child=array();
4. $child['keystr']='key'.$i;
5. $child['valuestr']='value'.$i;
6. $arraytest[]=$child;
7. }
9. print_r($arraytest);
11. print_r("+++++++++++++++++++++++++");
12. for($i=0;$i $child=$arraytest[$i];
13. $child['valuestr']="_________".$i;
14. }
17. print_r($arraytest);
19. print_r("+++++++++++++++++++++++++");
21. ?>

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控制台输出：

2. $arraytest=array();
3. for($i=0;$i $child=array();
4. $child['keystr']='key'.$i;
5. $child['valuestr']='value'.$i;
6. $arraytest[]=$child;
7. }
9. print_r($arraytest);
11. print_r("+++++++++++++++++++++++++");
12. for($i=0;$i $child=&$arraytest[$i]; //注意这里加了一个指针符号，代表是传址调用
13. $child['valuestr']="_________".$i;
14. }
16. print_r($arraytest);
17. print_r("+++++++++++++++++++++++++");
18. ?>

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控制台输出：

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 ) )+++++++++++++++++++++++++