str_split() not working properly in PHP when using string with special characters

Question

I am trying out the following

$x = "126·10⁴";
$array = str_split($x);
echo "x = " . $x . "<br>";
echo "Array length: " . count($array) . "<br>";

 echo "Charset: " .mb_detect_encoding($x)."<br>";

foreach($array as $i)
    echo $i .  " ";

which gives as output:

x = 126·10⁴
Array length: 10
Charset: UTF-8
1 2 6 � � 1 0 � � �

I want the · and ⁴ to be 1 character in the array, how can this be done? What I am trying to reach is to iterate over all characters of a string, so any other solution is also welcome.

First comment in the manual: php.net/manual/en/function.str-split.php#107658 — Rizier123
– Rizier123, Commented Oct 10, 2015 at 13:59

Jacques Marais · Accepted Answer · 2015-10-10 14:07:56Z

2

According to a comment in the PHP Manual (Thanks to @Rizier123), the proper way to do this is as following:

function str_split_unicode($str, $l = 0) {
    if ($l > 0) {
        $ret = array();
        $len = mb_strlen($str, "UTF-8");
        for ($i = 0; $i < $len; $i += $l) {
            $ret[] = mb_substr($str, $i, $l, "UTF-8");
        }
        return $ret;
    }
    return preg_split("//u", $str, -1, PREG_SPLIT_NO_EMPTY);
}

answered Oct 10, 2015 at 14:07

Jacques Marais

2,77619 silver badges34 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Saty Over a year ago

This function helps me in my base64_decode string. Thanks for this answer!!

Collectives™ on Stack Overflow

str_split() not working properly in PHP when using string with special characters

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related