Collator::asort

collator_asort

(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)

Collator::asort -- collator_asortSort array maintaining index association

Descrizione

Stile orientato agli oggetti

public Collator::asort(array &$array, int $flags = Collator::SORT_REGULAR): bool

Stile procedurale

collator_asort(Collator $object, array &$array, int $flags = Collator::SORT_REGULAR): bool

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().

Elenco dei parametri

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 is Collator::SORT_REGULAR. It is also used if an invalid flags value has been specified.

Valori restituiti

Restituisce true in caso di successo, false in caso di fallimento.

Esempi

Example #1 collator_asort() example

<?php
$coll 
collator_create'en_US' );
$arr = array(
     
'a' => '100',
     
'b' => '50',
     
'c' => '7'
);
collator_asort$coll$arrCollator::SORT_NUMERIC );
var_export$arr );

collator_asort$coll$arrCollator::SORT_STRING );
var_export$arr );
?>

Il precedente esempio visualizzerà:

array (
  'c' => '7',
  'b' => '50',
  'a' => '100',
)array (
  'a' => '100',
  'b' => '50',
  'c' => '7',
)

Vedere anche:

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User Contributed Notes 1 note

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0
alix dot axel at NOSPAM dot gmail dot com
11 years ago
For those of you who are looking for a way to integrate natural sorting with the UCA rules this hack seems to work:

<?php

$array
= array
(
   
'1', '100',
   
'al', 'be',
   
'Alpha', 'Beta',
   
'Álpha', 'Àlpha', 'Älpha',
   
'かたかな',
   
'img1.png', 'img2.png',
   
'img10.png', 'img20.png'
);

echo
'<pre>';
print_r(sortIntl($array, true));
echo
'</pre>';

function
sortIntl($array, $natural = true)
{
   
$data = $array;

    if (
$natural === true)
    {
       
$data = preg_replace_callback('~([0-9]+)~', 'natsortIntl', $data);
    }

   
collator_asort(collator_create('root'), $data);

    return
array_intersect_key($array, $data);
}

function
natsortIntl($number)
{
    return
sprintf('%032d', $number);
}

?>

Output:

Array
(
    [0] => 1
    [1] => 100
    [2] => al
    [3] => be
    [4] => Alpha
    [5] => Beta
    [6] => Álpha
    [7] => Àlpha
    [8] => Älpha
    [9] => かたかな
    [10] => img1.png
    [11] => img2.png
    [12] => img10.png
    [13] => img20.png
)
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