Collator::asort
collator_asort
(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)
Collator::asort -- collator_asort — Sort array maintaining index association
Description
Object-oriented style
&$array
, int $flags
= Collator::SORT_REGULAR): boolProcedural style
This function sorts an array such that array indices maintain their correlation with the array elements they are associated with. This is used mainly when sorting associative arrays where the actual element order is significant. Array elements will have sort order according to current locale rules.
Equivalent to standard PHP asort().
Parameters
-
object
-
Collator object.
-
array
-
Array of strings to sort.
-
flags
-
Optional sorting type, one of the following:
-
Collator::SORT_REGULAR
- compare items normally (don't change types) -
Collator::SORT_NUMERIC
- compare items numerically -
Collator::SORT_STRING
- compare items as strings
Default
flags
value isCollator::SORT_REGULAR
. It is also used if an invalidflags
value has been specified. -
Return Values
Returns true
on success or false
on failure.
Examples
Example #1 collator_asort() example
<?php
$coll = collator_create( 'en_US' );
$arr = array(
'a' => '100',
'b' => '50',
'c' => '7'
);
collator_asort( $coll, $arr, Collator::SORT_NUMERIC );
var_export( $arr );
collator_asort( $coll, $arr, Collator::SORT_STRING );
var_export( $arr );
?>
The above example will output:
array ( 'c' => '7', 'b' => '50', 'a' => '100', )array ( 'a' => '100', 'b' => '50', 'c' => '7', )
See Also
- Collator constants
- collator_sort() - Sort array using specified collator
- collator_sort_with_sort_keys() - Sort array using specified collator and sort keys