CODEWITHSUNDEEP
php
John Magnolia
John Magnolia

Reputation: 16823

truncate string with escaped forien charasters

I have the following function to truncate text:

 /**
     * Removes HTML tags, crops to 255 symbols
     *
     * @param string $unformatted
     */
    public function formatShortDescr($unformatted) {
        if(strlen($unformatted)<1) return;

        $long_text = strip_tags(trim($unformatted));
        $max_length = 255;

        if(strlen($long_text) > $max_length){
            $short_text = (substr($long_text,0,$max_length));
        } else {
            $short_text = $long_text;
        }
        return $short_text;
    }

E.g this: <p>Victory har utvecklats f&ouml;r att passa den &auml;gare som beh&ouml;ver en kompakt, ........ get converted into: Victory har utvecklats f&ouml;r att passa den &a

How can I set it to never cut a string half way through break the html entities?

Upvotes: 0

Views: 109

Answers (2)

Hamish
Hamish

Reputation: 23354

An alternative approach that it sometimes appropriate, is to truncate at the last space instead. It depends on if you want exactly 255 characters, or if you want something readable, but a useful side-effect is you don't have to worry about HTML entities.

For example:

$string = "this is the long test string to test with";
$limit = 20;

$result = substr($string, 0, strrpos($string, " ", -$limit)-1);
echo $result; // "this is the long"

Upvotes: 1

TheHe
TheHe

Reputation: 2972

should be easy to first convert the entities to normal chars, then use mb_strlen (becaus of 2-byte characters, UTF8) to check the length and mb_substring to truncate and THEN convert entities back...

    $long_text = strip_tags(trim($unformatted));
    $long_text = html_entity_decode($long_text);

    $long_text = mb_strlen($long_text) > $max_length ? mb_substr($long_text, 0, $max_length) : $long_text;

    return htmlentities($long_text);

Upvotes: 1

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