关于json_encode的数组转json问题
我要把一个数组转为json
数组本来输出是这样
print_r($arrary);//输出结果：Array ([0] => upload/2013/05/09/14303.jpeg [1] => upload/2013/05/09/14300.jpeg [2] => upload/2013/05/09/148.jpeg [3] => upload/2013/05/09/187.jpeg [4] => upload/2013/05/09/14296.jpeg [5] => upload/2013/05/09/203.jpeg ) $jarr=json_encode($arrary);//把数组转为jsonprint_r($jarr);//输出结果：["upload\/2013\/05\/09\/14303.jpeg","upload\/2013\/05\/09\/14300.jpeg","upload\/2013\/05\/09\/148.jpeg","upload\/2013\/05\/09\/187.jpeg","upload\/2013\/05\/09\/14296.jpeg","upload\/2013\/05\/09\/203.jpeg"]
这是怎么回事，json为什么没有键？不是应该是"0":upload/2013/05/09/14303.jpeg 这样的吗？而且原本数组中存的url中多了许多"\" 原来只有"/"的，这是怎么回事？
回复讨论(解决方案)
json数据格式就是这样的，js里调用是没有问题的。
json数据格式就是这样的，js里调用是没有问题的。
但是我看网上的教程不都是"0":upload/2013/05/09/14303.jpeg这样的吗？ 而且这个“\”出现是什么原因？
json数据格式就是这样的，js里调用是没有问题的。
但是我看网上的教程不都是"0":upload/2013/05/09/14303.jpeg这样的吗？ 而且这个“\”出现是什么原因？
反斜杠\是转义字符的
要是有中文会转码 先 urlencode 再 urldecode就没有 \ 中文也行
虽然没有键名，不过不是有，吗
JS的数组的写法和PHP的还是有一定区别的，不是键名=》键值，而是用,隔开
var ar=["upload\/2013\/05\/09\/14303.jpeg","upload\/2013\/05\/09\/14300.jpeg","upload\/2013\/05\/09\/148.jpeg","upload\/2013\/05\/09\/187.jpeg","upload\/2013\/05\/09\/14296.jpeg","upload\/2013\/05\/09\/203.jpeg"];
这里面的ar[0]就是 upload/2013/05/09/14303.jpeg
\是为了转义/用的，不止是/还有*()等符号在你输出的时候前面都会被加上\，因为它们比较特殊
如果键名是数字，会自动隐藏掉
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