数组函数库：ksort

ksort

(PHP3 , PHP4)

ksort --- 将数组的索引值排列

语法 : int&">nbsp; ksort (array  array [, int sort_flags] ) );

说明 :

此函数将数组依照索引值由a-z重新排列

Example :

$fruits = array("d" => "lemon" , "a" => "orange" , "b" => "banana" , "c" => "apple");

ksort($fruits);

for(reset($fruits) ; $key = key($fruits) ; next($fruits)) {

echo "fruits[$key] = " .$fruits[$key]. "\n";

}

此范例的结果为 :

fruits[a] = orange

fruits[b] = banana

fruits[c] = apple

fruits[d] = lemon

参考 : asort( )  arsort( )  sort( )  rsort( )