Php array sorting rsort arsort asort

Source: Internet
Author: User
Tags php tutorial scalar sorts

Php Tutorial array sorting rsort arsort asort
$ Full_name = array ();

$ Full_name ["Roger"] = "Waters ";
$ Full_name ["Richard"] = "Wright ";
$ Full_name ["Nick"] = "Mason ";
You may be the value in the array to be sorted. For example, assume that the values in your array are not listed alphabetically. For example:

$ Full_name ["David"] = "Gilmour ";
Use asort ($ full_name); function to sort

The letter "a" tells PHP array Association. (If you do not have the "A" key name before "sort", it will become A number !). "A" also tells PHP the value of sorting, and there is no key. In the script above, the surnames are sorted. If you want to sort keys, you can use ksort () instead.


If you have A scalar array (number as the key), close it when you leave ". Like This

$ Numbers = array ();

$ Numbers [] = "2 ";
$ Numbers [] = "8 ";
$ Numbers [] = "10 ";
$ Numbers [] = "6 ";

Sort ($ numbers );

Print $ numbers [0];
Print $ numbers [1];
Print $ numbers [2];
Print $ numbers [3];

Rsort ()-Sorts a Scalar array in reverse order
Arsort ()-Sorts the Values in an Associative array in reverse order
Krsort ()-Sorts the Keys in an Associative array in reverse order

 

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