怀疑：php array_merge_recursive的一个bug-php教程-PHP中文网

怀疑：php array_merge_recursive的一个bug

php中文网

发布： 2016-06-06 20:40:19

原创

1189人浏览过

<code>$adiff = json_decode('{"28":0,"29":0,"30":0,"31":0,"32":0,"33":0,"34":0,"35":0}',true);
$diff = json_decode('{"28":1,"29":1,"30":1,"31":1,"32":1,"33":1,"34":1,"35":1}',true);
$adiff = array_merge_recursive($diff,$adiff);
var_dump($adiff);
</code>

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理论上应该返回：

<code>array(16) { [28]=&gt; int(1) [29]=&gt; int(1) [20]=&gt; int(1) [31]=&gt; int(1) [32]=&gt; int(1) [33]=&gt; int(1) [34]=&gt; int(1) [35]=&gt; int(1) [36]=&gt; int(0) [37]=&gt; int(0) [38]=&gt; int(0) [39]=&gt; int(0) [40]=&gt; int(0) [41]=&gt; int(0) [42]=&gt; int(0) [43]=&gt; int(0) }
</code>

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实际返回：

<code>array(16) { [0]=&gt; int(1) [1]=&gt; int(1) [2]=&gt; int(1) [3]=&gt; int(1) [4]=&gt; int(1) [5]=&gt; int(1) [6]=&gt; int(1) [7]=&gt; int(1) [8]=&gt; int(0) [9]=&gt; int(0) [10]=&gt; int(0) [11]=&gt; int(0) [12]=&gt; int(0) [13]=&gt; int(0) [14]=&gt; int(0) [15]=&gt; int(0) }
</code>

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这算不算一个bug？

更新：
这个不算bug,只是手册里面没有对数字键进行merge时会重置说明清楚。

回复内容：

<code>$adiff = json_decode('{"28":0,"29":0,"30":0,"31":0,"32":0,"33":0,"34":0,"35":0}',true);
$diff = json_decode('{"28":1,"29":1,"30":1,"31":1,"32":1,"33":1,"34":1,"35":1}',true);
$adiff = array_merge_recursive($diff,$adiff);
var_dump($adiff);
</code>

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理论上应该返回：

<code>array(16) { [28]=&gt; int(1) [29]=&gt; int(1) [20]=&gt; int(1) [31]=&gt; int(1) [32]=&gt; int(1) [33]=&gt; int(1) [34]=&gt; int(1) [35]=&gt; int(1) [36]=&gt; int(0) [37]=&gt; int(0) [38]=&gt; int(0) [39]=&gt; int(0) [40]=&gt; int(0) [41]=&gt; int(0) [42]=&gt; int(0) [43]=&gt; int(0) }
</code>

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实际返回：

<code>array(16) { [0]=&gt; int(1) [1]=&gt; int(1) [2]=&gt; int(1) [3]=&gt; int(1) [4]=&gt; int(1) [5]=&gt; int(1) [6]=&gt; int(1) [7]=&gt; int(1) [8]=&gt; int(0) [9]=&gt; int(0) [10]=&gt; int(0) [11]=&gt; int(0) [12]=&gt; int(0) [13]=&gt; int(0) [14]=&gt; int(0) [15]=&gt; int(0) }
</code>

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这算不算一个bug？

更新：
这个不算bug,只是手册里面没有对数字键进行merge时会重置说明清楚。

手册中提到了：