PHP strip_links函数代码示例

/**
* Given a simple string, this function returns the string
* processed by enabled string filters if $CFG->filterall is enabled
*
* This function should be used to print short strings (non html) that
* need filter processing e.g. activity titles, post subjects,
* glossary concepts.
*
* @global object
* @global object
* @global object
* @staticvar bool $strcache
* @param string $string The string to be filtered.
* @param boolean $striplinks To strip any link in the result text.
                             Moodle 1.8 default changed from false to true! MDL-8713
* @param array $options options array/object or courseid
* @return string
*/
function format_string($string, $striplinks = true, $options = NULL)
{
    global $CFG, $COURSE, $PAGE;
    //We'll use a in-memory cache here to speed up repeated strings
    static $strcache = false;
    if (empty($CFG->version) or $CFG->version < 2010072800 or during_initial_install()) {
        // do not filter anything during installation or before upgrade completes
        return $string = strip_tags($string);
    }
    if ($strcache === false or count($strcache) > 2000) {
        // this number might need some tuning to limit memory usage in cron
        $strcache = array();
    }
    if (is_numeric($options)) {
        // legacy courseid usage
        $options = array('context' => get_context_instance(CONTEXT_COURSE, $options));
    } else {
        $options = (array) $options;
        // detach object, we can not modify it
    }
    if (empty($options['context'])) {
        // fallback to $PAGE->context this may be problematic in CLI and other non-standard pages :-(
        $options['context'] = $PAGE->context;
    } else {
        if (is_numeric($options['context'])) {
            $options['context'] = get_context_instance_by_id($options['context']);
        }
    }
    if (!$options['context']) {
        // we did not find any context? weird
        return $string = strip_tags($string);
    }
    //Calculate md5
    $md5 = md5($string . '<+>' . $striplinks . '<+>' . $options['context']->id . '<+>' . current_language());
    //Fetch from cache if possible
    if (isset($strcache[$md5])) {
        return $strcache[$md5];
    }
    // First replace all ampersands not followed by html entity code
    // Regular expression moved to its own method for easier unit testing
    $string = replace_ampersands_not_followed_by_entity($string);
    if (!empty($CFG->filterall)) {
        $string = filter_manager::instance()->filter_string($string, $options['context']);
    }
    // If the site requires it, strip ALL tags from this string
    if (!empty($CFG->formatstringstriptags)) {
        $string = strip_tags($string);
    } else {
        // Otherwise strip just links if that is required (default)
        if ($striplinks) {
            //strip links in string
            $string = strip_links($string);
        }
        $string = clean_text($string);
    }
    //Store to cache
    $strcache[$md5] = $string;
    return $string;
}

 public function test_strip_links()
 {
     $this->assertSame('this is a link', strip_links('this is a <a href="http://someaddress.com/query">link</a>'));
 }

/**
 * Given a simple string, this function returns the string
 * processed by enabled string filters if $CFG->filterall is enabled
 *
 * This function should be used to print short strings (non html) that
 * need filter processing e.g. activity titles, post subjects,
 * glossary concepts.
 *
 * @staticvar bool $strcache
 * @param string $string The string to be filtered. Should be plain text, expect
 * possibly for multilang tags.
 * @param boolean $striplinks To strip any link in the result text. Moodle 1.8 default changed from false to true! MDL-8713
 * @param array $options options array/object or courseid
 * @return string
 */
function format_string($string, $striplinks = true, $options = null)
{
    global $CFG, $PAGE;
    // We'll use a in-memory cache here to speed up repeated strings.
    static $strcache = false;
    if (empty($CFG->version) or $CFG->version < 2013051400 or during_initial_install()) {
        // Do not filter anything during installation or before upgrade completes.
        return $string = strip_tags($string);
    }
    if ($strcache === false or count($strcache) > 2000) {
        // This number might need some tuning to limit memory usage in cron.
        $strcache = array();
    }
    if (is_numeric($options)) {
        // Legacy courseid usage.
        $options = array('context' => context_course::instance($options));
    } else {
        // Detach object, we can not modify it.
        $options = (array) $options;
    }
    if (empty($options['context'])) {
        // Fallback to $PAGE->context this may be problematic in CLI and other non-standard pages :-(.
        $options['context'] = $PAGE->context;
    } else {
        if (is_numeric($options['context'])) {
            $options['context'] = context::instance_by_id($options['context']);
        }
    }
    if (!$options['context']) {
        // We did not find any context? weird.
        return $string = strip_tags($string);
    }
    // Calculate md5.
    $md5 = md5($string . '<+>' . $striplinks . '<+>' . $options['context']->id . '<+>' . current_language());
    // Fetch from cache if possible.
    if (isset($strcache[$md5])) {
        return $strcache[$md5];
    }
    // First replace all ampersands not followed by html entity code
    // Regular expression moved to its own method for easier unit testing.
    $string = replace_ampersands_not_followed_by_entity($string);
    if (!empty($CFG->filterall)) {
        $filtermanager = filter_manager::instance();
        $filtermanager->setup_page_for_filters($PAGE, $options['context']);
        // Setup global stuff filters may have.
        $string = $filtermanager->filter_string($string, $options['context']);
    }
    // If the site requires it, strip ALL tags from this string.
    if (!empty($CFG->formatstringstriptags)) {
        $string = str_replace(array('<', '>'), array('&lt;', '&gt;'), strip_tags($string));
    } else {
        // Otherwise strip just links if that is required (default).
        if ($striplinks) {
            // Strip links in string.
            $string = strip_links($string);
        }
        $string = clean_text($string);
    }
    // Store to cache.
    $strcache[$md5] = $string;
    return $string;
}

 function test_strip_links() {
     $this->assertEquals(strip_links('this is a <a href="http://someaddress.com/query">link</a>'), 'this is a link');
 }

    }
    $arr = explode("\n", $dom->saveXML(), 2);
    return $arr[1];
}
$fullname = str_replace('@', '', $_GET['fullname']);
$splitted = explode('/', $fullname);
$pkg = $splitted[0];
if (preg_match("/[^+0-9A-Za-z.-]/", $pkg)) {
    die("invalid");
}
$name = $splitted[1];
$namelen = strlen($name);
$index = str_replace('.', '', str_replace('-', '', str_replace('+', '', $prefix . $pkg)));
$mysqli = new mysqli("p:127.0.0.1", "", "", "", 51413);
if ($mysqli->connect_errno) {
    die("Failed to connect to MySQL: " . $mysqli->connect_error);
}
$name = str_replace(".", " << . << ", $name);
$name = $mysqli->real_escape_string($name);
if (!($q = $mysqli->query("SELECT type, name, shortdesc, path, signature, namelen FROM {$index} WHERE MATCH('{$name}') AND namelen={$namelen} LIMIT 1 OPTION max_matches=1,ranker=none"))) {
    die("Query failed: (" . $mysqli->errno . ") " . $mysqli->error);
}
$row = $q->fetch_assoc();
if ($row) {
    echo '<p>' . strip_links($row['signature']) . '</p>';
    echo strip_links($row['shortdesc']);
} else {
    echo "no result";
}
$q->close();
$mysqli->close();

/**
* Given a simple string, this function returns the string
* processed by enabled string filters if $CFG->filterall is enabled
*
* This function should be used to print short strings (non html) that
* need filter processing e.g. activity titles, post subjects,
* glossary concepts.
*
* @global object
* @global object
* @global object
* @staticvar bool $strcache
* @param string $string The string to be filtered.
* @param boolean $striplinks To strip any link in the result text.
                             Moodle 1.8 default changed from false to true! MDL-8713
* @param int $courseid Current course as filters can, potentially, use it
* @return string
*/
function format_string($string, $striplinks = true, $courseid = NULL)
{
    global $CFG, $COURSE, $PAGE;
    //We'll use a in-memory cache here to speed up repeated strings
    static $strcache = false;
    if ($strcache === false or count($strcache) > 2000) {
        // this number might need some tuning to limit memory usage in cron
        $strcache = array();
    }
    //init course id
    if (empty($courseid)) {
        $courseid = $COURSE->id;
    }
    //Calculate md5
    $md5 = md5($string . '<+>' . $striplinks . '<+>' . $courseid . '<+>' . current_language());
    //Fetch from cache if possible
    if (isset($strcache[$md5])) {
        return $strcache[$md5];
    }
    // First replace all ampersands not followed by html entity code
    // Regular expression moved to its own method for easier unit testing
    $string = replace_ampersands_not_followed_by_entity($string);
    if (!empty($CFG->filterall) && $CFG->version >= 2009040600) {
        // Avoid errors during the upgrade to the new system.
        $context = $PAGE->context;
        $string = filter_manager::instance()->filter_string($string, $context, $courseid);
    }
    // If the site requires it, strip ALL tags from this string
    if (!empty($CFG->formatstringstriptags)) {
        $string = strip_tags($string);
    } else {
        // Otherwise strip just links if that is required (default)
        if ($striplinks) {
            //strip links in string
            $string = strip_links($string);
        }
        $string = clean_text($string);
    }
    //Store to cache
    $strcache[$md5] = $string;
    return $string;
}