• php一维数组合并

    1. $arr1=['1','2','3'];
    2. $arr2=['4',24,'6'];
    3. $all=array_combine($arr1, $arr2);//数组合并函数
    4. var_dump($all);
    1. php中数组的几种合并方法：
    2.  
    3. array_merge(array1,array2):两个数组中的一维数据合并，二维数组如果key相同，array2中的值会替代array1中的值；
    4.  
    5. 加号：array1+array2:把array2中key对应在array1不存在的key的值添加到array1中(像当于array1你有4个位置，则那4个位置的值不变，array2有5个位置，只把第5个位置的值加到array1中)
    6.  
    7. array_merge_recursive：与array_merge唯一不同的是，二维数据的值不会替换，是递归合并到一起；
    8.  
    9. $array1 = array(2,4,"color" => "red");
    10.  
    11. $array2 = array("a", "b", "color" => "green", "shape" => "trapezoid", 4);
    12.  
    13. $result = array_merge($array1, $array2);
    14.  
    15. echo "----------------array_merge---------------".PHP_EOL;
    16.  
    17. print_r($result);
    18.  
    19. echo "----------------+++++++++++---------------".PHP_EOL;
    20.  
    21. print_r($array1+$array2);
    22.  
    23. echo "----------------array_merge_recursive---------------".PHP_EOL;
    24.  
    25. print_r(array_merge_recursive($array1,$array2));
    26.  
    27. ----------------array_merge---------------
    28.  
    29. Array
    30.  
    31. (
    32.  
    33. [0] => 2
    34.  
    35. [1] => 4
    36.  
    37. [color] => green
    38.  
    39. [2] => a
    40.  
    41. [3] => b
    42.  
    43. [shape] => trapezoid
    44.  
    45. [4] => 4
    46.  
    47. )
    48.  
    49. ----------------+++++++++++---------------
    50.  
    51. Array
    52.  
    53. (
    54.  
    55. [0] => 2
    56.  
    57. [1] => 4
    58.  
    59. [color] => red
    60.  
    61. [shape] => trapezoid
    62.  
    63. [2] => 4
    64.  
    65. )
    66.  
    67. ----------------array_merge_recursive---------------
    68.  
    69. Array
    70.  
    71. (
    72.  
    73. [0] => 2
    74.  
    75. [1] => 4
    76.  
    77. [color] => Array
    78.  
    79. (
    80.  
    81. [0] => red
    82.  
    83. [1] => green
    84.  
    85. )
    86.  
    87. [2] => a
    88.  
    89. [3] => b
    90.  
    91. [shape] => trapezoid
    92.  
    93. [4] => 4
    94.  
    95. )
    96.  
    97. $array1 = array('a','b');
    98.  
    99. $array2 = array(1,2);
    100.  
    101. $result = array_merge($array1, $array2);
    102.  
    103. echo "----------------array_merge---------------".PHP_EOL;
    104.  
    105. print_r($result);
    106.  
    107. echo "----------------+++++++++++---------------".PHP_EOL;
    108.  
    109. print_r($array1+$array2);
    110.  
    111. echo "----------------array_merge_recursive---------------".PHP_EOL;
    112.  
    113. print_r(array_merge_recursive($array1,$array2));
    114.  
    115. ----------------array_merge---------------
    116.  
    117. Array
    118.  
    119. (
    120.  
    121. [0] => a
    122.  
    123. [1] => b
    124.  
    125. [2] => 1
    126.  
    127. [3] => 2
    128.  
    129. )
    130.  
    131. ----------------+++++++++++---------------
    132.  
    133. Array
    134.  
    135. (
    136.  
    137. [0] => a
    138.  
    139. [1] => b
    140.  
    141. )
    142.  
    143. ----------------array_merge_recursive---------------
    144.  
    145. Array
    146.  
    147. (
    148.  
    149. [0] => a
    150.  
    151. [1] => b
    152.  
    153. [2] => 1
    154.  
    155. [3] => 2
    156.  
    157. )

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  • 原文地址：https://blog.csdn.net/qq_34631220/article/details/126116372