php json_encode奇怪问题说明_php技巧

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Release: 2016-05-17 09:15:22
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json_encode 只支持utf-8格式这个就不多说了

复制代码 代码如下:

$array = array (
[0] => array ( [sale_unit_detail_id] => 13 [price] => 740000 [geometric_lat] => 51.50348620 [geometric_lng] =>-0.01710900 )
[1] => Array ( [sale_unit_detail_id] => 27 [price] => 740000 [geometric_lat] => 51.50348620 [geometric_lng] => -0.01710900 )
);

上面的php数组json_encode 之后通常会转化php数组会转化为形如[[...][...]] 的格式,但是今天碰到一个怪问题,当我的数组长度达到142的时候 给我转化为了形如
  {'0' :{..},'1':{...}......}的格式很奇怪,json_encode 一个神奇的函数
php中json_encode转数组为json字符串时的超奇怪问题。

对比以下两段代码:
复制代码 代码如下:

$menu[0][0] = "title1";
$menu[0][1] = "bar1";
$menu[0][2] = "bar2";
$menu[1][0] = 'title2';
$menu[2][0] = 'title3';
echo '&$menu='.json_encode($menu).'&';

这个会输出:&$menu=[["title1","bar1","bar2"],["title2"],["title3"]]&
复制代码 代码如下:

$menu[0]["title"] = "title1";
$menu[0]["bar1"] = "bar1";
$menu[0]["bar2"] = "bar2";
$menu[1][0] = 'title2';
$menu[2][0] = 'title3';
echo '&$menu='.json_encode($menu).'&';

而这个居然输出:&$menu=[{"title":"title1","bar1":"bar1","bar2":"bar2"},["title2"],["title3"]]&

什么意思?问题就在于{}和[],{}是对象,[]是数组!!!!在非php的情况下遍历的时候方法就不一样了!json_encode这个东西太神奇了,神奇起来让人有点郁闷!
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