按键排序关联数组

我想按键排序关联数组。我使用ksort函数，但返回1而不是array.Below是我的代码。按键排序关联数组

$states=array("DD"=>"Daman and Diu", "LD"=>"Lakshdweep", "DN"=>"Dadra 
and nagar haveli", "AN"=>"Andaman and Nicobar island", "SK"=>"Sikkim", 
"MZ"=>"Mizoram", "GA"=>"Goa", "PY"=>"Puduchery", "CH"=>"Chandigarh", 
"ML"=>"Meghalaya", "AR"=>"Arunachal Pradesh", "TR"=>"Tripura", 
"HP"=>"Himanchal Pradesh", "NL"=>"Nagaland", "PB"=>"Punjab", 
"CG"=>"Chattisgarh", "JK"=>"Jammu and Kashmir", "UA"=>"Uttrakhand", 
"HR"=>"Haryana", "JH"=>"Jharkhand", "KL"=>"Kerela", "MN"=>"Manipur" , 
"AS"=>"Assam", "RJ"=>"Rajasthan", "MP"=>"Madhya Pradesh", 
"KA"=>"Karnataka", "BR"=>"Bihar", "OR"=>"Orissa", "GJ"=>"Gujrat", 
"AP"=>"Andhra Pradesh", "TN"=>"TamilNadu", "DL"=>"Delhi", 
"MH"=>"Maharastra", "WB"=>"WestBengal", "UP"=>"UttarPradesh", 
); 


$states = ksort($states); 
print_r($states);

输出我得到的是：1

我想数组，而不是1

来源

2012-12-20 Bhuvnesh Gupta

不知道函数应该如何工作：阅读[在手册中]（http://php.net/ksort）！ –

'ksort（$ states）''而不是'$ states = ksort（$ states）' –

@ÁlvaroG.Vicario好的我知道了 –

不要reaffect ksort你的阵列的结果，ksort需要一个数组引用：

$states=array(
"DD"=>"Daman and Diu", "LD"=>"Lakshdweep", "DN"=>"Dadra and nagar haveli", "AN"=>"Andaman and Nicobar island", "SK"=>"Sikkim", "MZ"=>"Mizoram", "GA"=>"Goa", "PY"=>"Puduchery", "CH"=>"Chandigarh", "ML"=>"Meghalaya", "AR"=>"Arunachal Pradesh", "TR"=>"Tripura", "HP"=>"Himanchal Pradesh", "NL"=>"Nagaland", "PB"=>"Punjab", "CG"=>"Chattisgarh", "JK"=>"Jammu and Kashmir", "UA"=>"Uttrakhand", "HR"=>"Haryana", "JH"=>"Jharkhand", "KL"=>"Kerela", "MN"=>"Manipur" , "AS"=>"Assam", "RJ"=>"Rajasthan", "MP"=>"Madhya Pradesh", "KA"=>"Karnataka", "BR"=>"Bihar", "OR"=>"Orissa", "GJ"=>"Gujrat", "AP"=>"Andhra Pradesh", "TN"=>"TamilNadu", "DL"=>"Delhi", "MH"=>"Maharastra", "WB"=>"WestBengal", "UP"=>"UttarPradesh" 
    ); 

ksort($states); 
print_r($states);

更多信息有关ksort here

来源

2012-12-20 11:10:08 Oussama

好的谢谢你的回答。 –

不要做$states = ksort($states);。
做ksort($states);。

*排序函数直接改变数组。

来源

2012-12-20 11:10:04 lolesque

使用ksort（）通过数组排序的键

不分配结果。尝试在排序后按以下方式打印：

ksort($states); 
print_r($states);

来源

2012-12-20 11:10:40

按键排序关联数组

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