仅按名称显示1个数组的内容

Question

如果有和这样的数组:

Array ( 
[Example1] => Array 
    ( 
        [0] => [1] => [2] => [3] => [4] => [5] => [6] => [7] => [8] => [9] => 
    ) 
[Example2] => Array 
    ( 
        [0] => [1] => [2] => [3] => [4] => 
        [5] => [6] => [7] => [8] => [9] => 
        [10] => [11] => [12] => [13] => [14] => 
        [15] => [16] => [17] => [18] => [19] => 
        [20] => [21] => [22] => [23] => [24] => 
        [25] => [26] => [27] => [28] => [29] => 
        [30] => [31] => [32] => [33] => [34] => 
        [35] => [36] => [37] => [38] => [39] => 
        [40] => [41] => [42] => [43] => [44] => 
        [45] => [46] => [47] => [48] => [49] => 
        [50] => [51] => [52] => [53] => [54] => 
        [55] => [56] => [57] => [58] => [59] => 
        [60] => [61] => [62] => [63] => [64] => 
        [65] => [66] => [67] => [68] => [69] => 
        [70] => [71] => [72] => [73] => [74] => 
        [75] => [76] => [77] => [78] => [79] => 
        [80] => [81] => [82] => [83] => [84] => 
        [85] => [86] => [87] => [88] => [89] => 
        [90] => [91] => [92] => [93] => [94] => 
        [95] => [96] => [97] => [98] => [99] => 
        [100] => [101] => [102] => [103] => [104] => 
        [105] => [106] => [107] => [108] => [109] => 
        [110] => [111] => [112] => [113] => [114] => 
        [115] => [116] => [117] => [118] => [119] => 
        [120] => [121] => [122] => [123] => [124] => 
        [125] => [126] => [127] => [128] => [129] => 
        [130] => [131] => [132] => [133] => [134] => 
    ) 
)

有两个主要数组(Example1和Example2),并在那些数组.我想知道我怎么只能调用像"Example2"这样的1个数组,所以它只打印那个并忽​​略"Example1"

请注意,可能有两个以上的主阵列.

如果使用该数组我想建立一个下拉菜单,这里我有:

$__selectGroups = '';
    foreach ($groups as $key => $options)
    {
        sort($options);
        if ($key !== '')
        {
            $__selectGroups .= '<optgroup label="'.$key.'">';
        }
        $__selectGroups .= implode("\n", $options);
        if ($key !== '')
        {
            $__selectGroups .= '</optgroup>';
        }
    }

如何使用Example2构建下拉列表并忽略其他下拉列表？

Answer 1

我不确定我理解这个问题......看起来太简单了:

print_r($yourArray['Example1']);

既然你编辑了你的问题,我想你想这样做？

foreach ($yourArray['Example1'] as $key => $value) {
}

这种访问嵌套数组的范例适用于全面...