PHP数组元素的位置

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Release: 2016-06-06 20:15:07
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<code class="php">$array_one = ['one','two','three'];

$array_two = ['one'=>'one,one','two'=>'two,two','three'=>'three,three'];</code>
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$array_one中元素的位置是已知的,比如'two'的位置是2。
但是在$array_two中'two,two'的位置还是2吗?

很明显不是的,我如果要调换位置1和3的元素,该如何?

<code>$array_two = ['three'=>'three,three','two'=>'two,two','one'=>'one,one'];</code>
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回复内容:

<code class="php">$array_one = ['one','two','three'];

$array_two = ['one'=>'one,one','two'=>'two,two','three'=>'three,three'];</code>
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$array_one中元素的位置是已知的,比如'two'的位置是2。
但是在$array_two中'two,two'的位置还是2吗?

很明显不是的,我如果要调换位置1和3的元素,该如何?

<code>$array_two = ['three'=>'three,three','two'=>'two,two','one'=>'one,one'];</code>
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位置?
应该是下标,而且two的下标应该是1
array_two的关联数组就用key访问!

如果只是三个元素的话 $array_two = array_reverse($array_two); 就行了

三个元素参考: @炑木 的就行了
也可以考虑 array_slice 然后将数组 加起来 (+)

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