回答編集履歴
1
追記
test
CHANGED
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@@ -56,6 +56,68 @@
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56
56
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57
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var_dump(arraySum($array));
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58
58
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59
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```
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60
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61
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63
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```php
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64
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65
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<?php
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66
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67
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68
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69
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$array = array(
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70
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71
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array('blue' => 1, 'red' => 2, 'green' => 3, 'purple' => 4),
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72
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73
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array('green' => 5, 'blue' => 6, 'yellow' => 7, 'cyan' => 8),
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74
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75
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array('red' => 4, 'blue' => 6, 'yellow' => 7, 'cyan' => 8),
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76
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77
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array('green' => 5, 'green' => 6, 'yellow' => 7, 'cyan' => 3),
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78
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79
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array('green' => 5, 'blue' => 6, 'green' => 7, 'cyan' => 5)
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80
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81
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);
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82
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83
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84
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85
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function arraySum(array $arr)
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86
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87
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{
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89
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$res = [];
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90
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91
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if (!is_array($arr)) {
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92
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return;
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94
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95
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}
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96
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97
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foreach ($arr as $val) {
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99
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foreach ($val as $k => $v) {
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101
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if (!isset($res[$k])) {
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102
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$res[$k] = 0;
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104
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105
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}
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106
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107
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$res[$k] += $v;
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108
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109
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}
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110
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111
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}
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112
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113
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return $res;
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114
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115
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}
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116
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117
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118
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119
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var_dump(arraySum($array));
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120
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59
121
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60
122
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61
123
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```
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