質問編集履歴
2
試したことを追記
test
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File without changes
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test
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@@ -120,7 +120,7 @@
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120
120
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121
121
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$sum = array_sum(array_column($arr,['r1'].['c2']));
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122
122
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123
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-
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123
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+
echo $sum;
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124
124
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125
125
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<?php
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126
126
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1
試したことを追記
test
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File without changes
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test
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@@ -90,6 +90,48 @@
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90
90
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91
91
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92
92
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93
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+
###試したこと
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94
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+
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95
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+
```PHP
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96
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+
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97
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+
//一つずつターミナル上で確認してみた
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98
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+
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99
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+
$arr = [
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100
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+
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101
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'r1' => ['c1' => 10, 'c2' => 5, 'c3' => 20],
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102
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+
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103
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'r2' => ['c1' => 7, 'c2' => 8, 'c3' => 12],
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104
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+
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105
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'r3' => ['c1' => 25, 'c2' => 9, 'c3' => 130]
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106
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+
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107
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];
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108
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+
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109
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+
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110
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+
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111
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+
//配列の確認
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112
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+
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113
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+
print_r($arr);
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114
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+
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115
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+
//配列の出力
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116
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+
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117
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+
echo $arr['r3']['c2'];
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118
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+
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119
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+
//配列の計算 うまくいかず
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120
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+
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121
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+
$sum = array_sum(array_column($arr,['r1'].['c2']));
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122
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+
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123
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+
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124
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+
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125
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+
<?php
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126
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+
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127
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+
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128
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+
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129
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+
?>
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130
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+
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131
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+
```
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132
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+
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133
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+
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134
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+
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93
135
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### 補足情報（FW/ツールのバージョンなど）
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94
136
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95
137
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