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Use "IntlChar" for the emoji detection

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Michael 2023-10-12 21:23:08 +00:00
parent 19529e2aa1
commit d1eb1ec0f4
1 changed files with 17 additions and 2 deletions
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19
src/Content/Smilies.php
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@ -296,7 +296,22 @@ class Smilies
{
// Strips all whitespace
$conv = preg_replace('#\s#u', '', html_entity_decode($body));
// @FIXME Emojis are almost always 4 byte Unicode characters, except when they include the zero-width joiner character, encoded on 3 bytes
return (!empty($conv) && (strlen($conv) / mb_strlen($conv) == 4));
if (empty($conv)) {
return false;
}
if (!class_exists('IntlChar')) {
// Most Emojis are 4 byte Unicode characters, so this is a good workaround, when IntlChar does not exist on the system
return strlen($conv) / mb_strlen($conv) == 4;
}
for ($i = 0; $i < mb_strlen($conv); $i++) {
$character = mb_substr($conv, $i, 1);
if (\IntlChar::isalnum($character)) {
return false;
}
}
return true;
}
}