asort
Description
Sort an array and maintain index association
Syntax
asort ( array &$array [, int $sort_flags = SORT_REGULAR ] ) : bool
Parameters
array
The input array.
sort_flags
Modify the sorting behavior.
SORT_REGULAR | compare items normally; the details are described in the comparison operators div |
SORT_NUMERIC | compare items numerically |
SORT_STRING | compare items as strings |
SORT_LOCALE_STRING | compare items as strings, based on the current locale. It uses the locale, which can be changed using setlocale() |
SORT_NATURAL | compare items as strings using "natural ordering" like natsort() |
SORT_FLAG_CASE | can be combined (bitwise OR) with SORT_STRING or SORT_NATURAL to sort strings case-insensitively |
Return
Returns TRUE on success or FALSE on failure.
Examples
1 · array
<? $array = array("d" => "Lemon", "a" => "orange", "B" => "Banana", "C" => "apple"); asort($array); foreach ($array as $key => $value) { echo "$key => $value\n"; } ?>
B => Banana d => Lemon C => apple a => orange
2 · sort_flags
<? $array = array("d" => "Lemon", "a" => "orange", "B" => "Banana", "C" => "apple"); $sort_flags = SORT_NATURAL | SORT_FLAG_CASE; asort($array, $sort_flags); foreach ($array as $key => $value) { echo "$key => $value\n"; } ?>
C => apple B => Banana d => Lemon a => orange