After sorting the PHP array, keep the corresponding string key name-PHP source code

After the PHP array is sorted, the corresponding string key name is retained to [1] [full screen preview]

 
 "Lemon", "orange" => "orange", "banana" => "banana", "apple" => "apple", "blueberry" => "blueberry ", "strawberry" => "strawberry", "mango" => "mango", "durian" => "durian", "watermelon" => "watermelon ", "pear", "grape" => "grape"); foreach ($ fruits as $ key => $ val) // output the original array $ fruits echo "fruits [". $ key. "] = ". $ val."
"; Echo"
 "; // Call the sort_with_keyName () method to obtain the sorted array $ fruits_sorted = sort_with_keyName ($ fruits); // output the final result. Foreach ($ fruits_sorted as $ key => $ val) echo "fruites sorted [". $ key. "] =". $ val ."
";/* Defines a sorting method for the array $ arr and * retains the corresponding string key name (subscript) */function sort_with_keyName ($ arr) {// Copy the array foreach ($ arr as $ key => $ value) with the same content as $ arr in another place in the memory $ a $ key = $ value; sort ($ arr); // sort the array $ arr/* create an array * array $ B with the original array key name element value (key value, its element (key value) order is consistent with the sorted array $ arr. */$ Index = 0; foreach ($ arr as $ keys => $ values) // sort by the order of the sorted array foreach ($ a as $ key => $ value) // search for the key value if ($ values = $ value) in the backup array // if the key value $ B [$ index ++] = $ key; // Set the element value of array $ B to the key name of the backup array $ a // The return value uses the key value of array $ B as the key name, return array_combine ($ B, $ arr); };?>

2.[Image]Array_With_String_Keys.png