or @siu',
'@@siu',
'@@siu',
'@@siu',
'@]*?.*?@siu',
'@@siu',
'@]*?.*?@siu',
// Add line breaks before and after blocks
'@?((address)|(blockquote)|(center)|(del))@iu',
'@?((div)|(h[1-9])|(ins)|(isindex)|(p)|(pre))@iu',
'@?((dir)|(dl)|(dt)|(dd)|(li)|(menu)|(ol)|(ul))@iu',
'@?((table)|(th)|(td)|(caption))@iu',
'@?((form)|(button)|(fieldset)|(legend)|(input))@iu',
'@?((label)|(select)|(optgroup)|(option)|(textarea))@iu',
'@?((frameset)|(frame)|(iframe))@iu',
],
[' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', "$0", "$0", "$0", "$0", "$0", "$0", "$0", "$0"],
$content ?? ''
);
return strip_tags($content ?? '');
}
}