(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
mb_split — Scinde une chaîne en tableau avec une expression rationnelle multioctets
Scinde la chaîne multioctets
string en utilisant l'expression rationnelle
pattern puis en retournant le résultat sous
forme de tableau.
patternLe masque de l'expression rationnelle.
stringLa chaîne à scinder.
limitlimit est spécifié,
la chaîne sera scindée en limit éléments au plus.
Note:
L'encodage de caractères spécifié par mb_regex_encoding() sera utilisé comme encodage pour cette fonction par défaut.
a (simpler) way to extract all characters from a UTF-8 string to array with a single call to a built-in function:
<?php
$str = 'Ма-
руся';
print_r(preg_split('//u', $str, null, PREG_SPLIT_NO_EMPTY));
?>
Output:
Array
(
[0] => М
[1] => а
[2] => -
[3] =>
[4] => р
[5] => у
[6] => с
[7] => я
)The $pattern argument doesn't use /pattern/ delimiters, unlike other regex functions such as preg_match.
<?php
# Works. No slashes around the /pattern/
print_r( mb_split("\s", "hello world") );
Array (
[0] => hello
[1] => world
)
# Doesn't work:
print_r( mb_split("/\s/", "hello world") );
Array (
[0] => hello world
)
?>I figure most people will want a simple way to break-up a multibyte string into its individual characters. Here's a function I'm using to do that. Change UTF-8 to your chosen encoding method.
<?php
function mbStringToArray ($string) {
$strlen = mb_strlen($string);
while ($strlen) {
$array[] = mb_substr($string,0,1,"UTF-8");
$string = mb_substr($string,1,$strlen,"UTF-8");
$strlen = mb_strlen($string);
}
return $array;
}
?>To split an string like this: "日、に、本、ほん、語、ご" using the "、" delimiter i used:
$v = mb_split('、',"日、に、本、ほん、語、ご");
but didn't work.
The solution was to set this before:
mb_regex_encoding('UTF-8');
mb_internal_encoding("UTF-8");
$v = mb_split('、',"日、に、本、ほん、語、ご");
and now it's working:
Array
(
[0] => 日
[1] => に
[2] => 本
[3] => ほん
[4] => 語
[5] => ご
)In addition to Sezer Yalcin's tip.
This function splits a multibyte string into an array of characters. Comparable to str_split().
<?php
function mb_str_split( $string ) {
# Split at all position not after the start: ^
# and not before the end: $
return preg_split('/(?<!^)(?!$)/u', $string );
}
$string = '火车票';
$charlist = mb_str_split( $string );
print_r( $charlist );
?>
# Prints:
Array
(
[0] => 火
[1] => 车
[2] => 票
)I agree that some people might want a mb_explode('', $string);
this is my solution for it:
<?php
$string = 'Hallöle';
$array = array_map(function ($i) use ($string) {
return mb_substr($string, $i, 1);
}, range(0, mb_strlen($string) -1));
expect($array)->toEqual(['H', 'a', 'l', 'l', 'ö', 'l', 'e']);
?>We are talking about Multi Byte ( e.g. UTF-8) strings here, so preg_split will fail for the following string:
'Weiße Rosen sind nicht grün!'
And because I didn't find a regex to simulate a str_split I optimized the first solution from adjwilli a bit:
<?php
$string = 'Weiße Rosen sind nicht grün!'
$stop = mb_strlen( $string);
$result = array();
for( $idx = 0; $idx < $stop; $idx++)
{
$result[] = mb_substr( $string, $idx, 1);
}
?>
Here is an example with adjwilli's function:
<?php
mb_internal_encoding( 'UTF-8');
mb_regex_encoding( 'UTF-8');
function mbStringToArray
( $string
)
{
$stop = mb_strlen( $string);
$result = array();
for( $idx = 0; $idx < $stop; $idx++)
{
$result[] = mb_substr( $string, $idx, 1);
}
return $result;
}
echo '<pre>', PHP_EOL,
print_r( mbStringToArray( 'Weiße Rosen sind nicht grün!', true)), PHP_EOL,
'</pre>';
?>
Let me know [by personal email], if someone found a regex to simulate a str_split with mb_split.an other way to str_split multibyte string:
<?php
$s='әӘөүҗңһ';
//$temp_s=iconv('UTF-8','UTF-16',$s);
$temp_s=mb_convert_encoding($s,'UTF-16','UTF-8');
$temp_a=str_split($temp_s,4);
$temp_a_len=count($temp_a);
for($i=0;$i<$temp_a_len;$i++){
//$temp_a[$i]=iconv('UTF-16','UTF-8',$temp_a[$i]);
$temp_a[$i]=mb_convert_encoding($temp_a[$i],'UTF-8','UTF-16');
}
echo('<pre>');
print_r($temp_a);
echo('</pre>');
//also possible to directly use UTF-16:
define('SLS',mb_convert_encoding('/','UTF-16'));
$temp_s=mb_convert_encoding($s,'UTF-16','UTF-8');
$temp_a=str_split($temp_s,4);
$temp_s=implode(SLS,$temp_a);
$temp_s=mb_convert_encoding($temp_s,'UTF-8','UTF-16');
echo($temp_s);
?>