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php基础之数组的基础
brait
Original
804 people have browsed it

1. 创建数组

  1. <?php
  2. $arr1 = array(
  3. '欧阳克','18岁','php讲师'
  4. );
  5. $arr2= [
  6. '朱老师','19岁','php讲师'
  7. ];
  8. print_r($arr1);
  9. echo "<br>";
  10. print_r($arr2);
  11. ?>

运行效果


2. 关联数组、索引数组

  1. <?php
  2. 索引数组的键值是数字
  3. $arr1 = array(
  4. 000=>'欧阳克',
  5. 111=>'18岁',
  6. 222=>'php讲师'
  7. );
  8. $arr2= [
  9. 000=>'朱老师',
  10. 111=>'19岁',
  11. 222=>'php讲师'
  12. ];
  13. print_r($arr1);
  14. echo "<br>";
  15. print_r($arr2);
  16. echo "<br>";
  17. //关联数组的键值是字符串
  18. $arr3 = array(
  19. 'name'=>'欧阳克',
  20. 'age'=>'18岁',
  21. 'job'=>'php讲师'
  22. );
  23. $arr4= [
  24. '姓名'=>'朱老师',
  25. '年龄'=>'19岁',
  26. '职业'=>'php讲师'
  27. ];
  28. print_r($arr3);
  29. echo "<br>";
  30. print_r($arr4);
  31. echo "<br>";
  32. ?>

运行效果


3. 访问数组的数据

  1. <?php
  2. //访问数组里的元素
  3. $arr1 = array(
  4. 'name'=>'欧阳克',
  5. 'age'=>'18岁',
  6. 'job'=>'php讲师'
  7. );
  8. $arr2= [
  9. '姓名'=>'朱老师',
  10. '年龄'=>'19岁',
  11. '职业'=>'php讲师'
  12. ];
  13. print_r($arr1['name']);
  14. print_r($arr2['年龄']);
  15. ?>

运行效果


4. 二维数组、三维数组

  1. <?PHP
  2. $arr3 = [
  3. [
  4. 'name'=>'欧阳克',
  5. 'age'=>'18岁',
  6. 'job'=>'php讲师'
  7. ],
  8. [
  9. 'name'=>'朱老师',
  10. 'age'=>'19岁',
  11. 'job'=>'php讲师'
  12. ]
  13. ];
  14. print_r($arr3[0]);
  15. echo "<br>";
  16. print_r($arr3[1]);
  17. //三维数组
  18. $arr4 = [
  19. [
  20. 'name'=>'朱老师',
  21. 'age'=>'19岁',
  22. 'job'=>'php讲师',
  23. 'course'=>['html','css']
  24. ]
  25. ];
  26. print_r($arr4);
  27. ?>

运行效果

5. 二维数组循环,三维数组循环

  1. //二维数组循环
  2. $arr3 = [
  3. [
  4. 'name'=>'欧阳克',
  5. 'age'=>'18岁',
  6. 'job'=>'php讲师'
  7. ],
  8. [
  9. 'name'=>'朱老师',
  10. 'age'=>'19岁',
  11. 'job'=>'php讲师'
  12. ]
  13. ];
  14. foreach ($arr3 as $v){
  15. print_r($v['name']);
  16. echo "<br>";
  17. }
  18. //三维数组循环
  19. $arr4 = [
  20. [
  21. 'name'=>'朱老师',
  22. 'age'=>'19岁',
  23. 'job'=>'php讲师',
  24. 'course'=>['html','css']
  25. ],
  26. [
  27. 'name'=>'欧阳克',
  28. 'age'=>'18岁',
  29. 'job'=>'php讲师',
  30. 'course'=>['php','js']
  31. ]
  32. ];
  33. foreach($arr4 as $v){
  34. echo '姓名:'.$v['name'].'--';
  35. echo '年龄:'.$v['age'].'--';
  36. echo '职业:'.$v['job'].'--';
  37. echo '技能:';
  38. foreach($v['course'] as $vv){
  39. echo $vv.'-';
  40. }
  41. echo '<hr>';
  42. }
  43. ?>

运行效果

手抄部分




Correcting teacher:天蓬老师天蓬老师

Correction status:qualified

Teacher's comments:为什么我只比欧阳老师大一岁? 写得不错
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