February 12, 2011 
Definition:
function wp_html_excerpt( $str, $count ) {}
Safely extracts not more than the first $count characters from html string.
UTF-8, tags and entities safe prefix extraction. Entities inside will *NOT* be counted as one character. For example & will be counted as 4, < as 3, etc.
Parameters
- integer $str: String to get the excerpt from.
- integer $count: Maximum number of characters to take.
Return values
returns:The excerpt.
Source code
function wp_html_excerpt( $str, $count ) {
$str = wp_strip_all_tags( $str, true );
$str = mb_substr( $str, 0, $count );
// remove part of an entity at the end
$str = preg_replace( '/&[^;\s]{0,6}$/', '', $str );
return $str;
}
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