Sorting an array of numeric strings in a descending direction

Question

I am trying to sort an array that contains numbers that range in substantial values. The result I want to get is a descending order of those numbers from the array I am retrieving from a MySQL Server. So far I have created this to test out the "sort" function:

<?php

$numbers = array("100", "50", "70", "1000");
sort($numbers);
echo var_dump($numbers);

?>

And the result I get is this:

array(4) { [0]=>  string(2) "50" [1]=>  string(2) "70" [2]=>  string(3) "100" [3]=>  string(4) "1000" }

I can see that the numbers are listing from smallest to largest, but I want it to list from the biggest integer to the smallest integer.

Because these values are all strings, and you want them sorted as numeric values, remember to use the SORT_NUMERIC flag with sort() or rsort() — Mark Baker
– Mark Baker, Commented Aug 25, 2010 at 14:46

Sarfraz · Accepted Answer · 2010-08-25 14:18:44Z

2

You need rsort to sort in reverse order:

rsort($numbers);

More Info:

http://php.net/manual/en/function.rsort.php

answered Aug 25, 2010 at 14:18

Sarfraz

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Thomas Clayson · Accepted Answer · 2010-08-25 14:19:00Z

1

rsort() reverse sorts the array :)

answered Aug 25, 2010 at 14:19

Thomas Clayson

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3 Comments

lab12 Over a year ago

Alright, but how do I get rid of the other text, and just include the numbers?

Mark Baker Over a year ago

@Kevin - What do you mean the "other text"? Do you mean the additional text generated by var_dump listing the data type, key values, etc?

Thomas Clayson Over a year ago

its not "other text" try $array[0]... it should just return the number. Thats just the definition of the string type.

tarrasch · Accepted Answer · 2010-08-25 14:18:57Z

1

you can use rsort to sort it descending.

http://www.developertutorials.com/tutorials/php/sorting-array-php-051114-1019/

answered Aug 25, 2010 at 14:18

tarrasch

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