I'd like to pad each multibyte character with spaces on either side. I can strip them out just fine, but I'd like to leave them in and just pad them.
For example: to .
Using underscores to represent spaces: to ______
How can I pad each multibyte character / emoji with spaces around it in a string?
451 Views Asked by Ryan At
3
There are 3 best solutions below
4
On
Simple regex replace could work as well...
mb_regex_encoding("UTF-8");
echo mb_ereg_replace(
'([^\p{L}\s])',
' \\1 ',
'text other text '
);
outputs: text other text
function pad_emojis($string) {
$default_encoding = mb_regex_encoding();
mb_regex_encoding("UTF-8");
$string = mb_ereg_replace('([^\p{L}\s])', ' \\1 ', $string);
mb_regex_encoding($default_encoding);
return $string;
}
2
On
I found this function that someone had added in the PHP docs that splits a multibyte string into an array of characters (like str_split) and modified it.
function addSpaces($string) {
$strlen = mb_strlen($string);
$new_string = '';
while ($strlen) {
$char = mb_substr($string,0,1,"UTF-8");
if (strlen($char) > 1) {
$new_string .= " $char ";
} else {
$new_string .= $char;
}
$string = mb_substr($string,1,$strlen,"UTF-8");
$strlen = mb_strlen($string);
}
return $new_string;
}
This question has other ways to do that split that could be similarly modified. The modification is, if strlen of one of the split characters is greater than 1, then it's multibyte, so add the spaces.
Use this monsterous-already-cooked regex:
Inside a
preg_replace_callback():Outputs:
Live demo