PHP filter_manager类代码示例

 /**
  * Reset contents of all database tables to initial values, reset caches, etc.
  *
  * Note: this is relatively slow (cca 2 seconds for pg and 7 for mysql) - please use with care!
  *
  * @static
  * @param bool $detectchanges
  *      true  - changes in global state and database are reported as errors
  *      false - no errors reported
  *      null  - only critical problems are reported as errors
  * @return void
  */
 public static function reset_all_data($detectchanges = false)
 {
     global $DB, $CFG, $USER, $SITE, $COURSE, $PAGE, $OUTPUT, $SESSION;
     // Stop any message redirection.
     phpunit_util::stop_message_redirection();
     // Stop any message redirection.
     phpunit_util::stop_phpmailer_redirection();
     // Stop any message redirection.
     phpunit_util::stop_event_redirection();
     // We used to call gc_collect_cycles here to ensure desctructors were called between tests.
     // This accounted for 25% of the total time running phpunit - so we removed it.
     // Show any unhandled debugging messages, the runbare() could already reset it.
     self::display_debugging_messages();
     self::reset_debugging();
     // reset global $DB in case somebody mocked it
     $DB = self::get_global_backup('DB');
     if ($DB->is_transaction_started()) {
         // we can not reset inside transaction
         $DB->force_transaction_rollback();
     }
     $resetdb = self::reset_database();
     $warnings = array();
     if ($detectchanges === true) {
         if ($resetdb) {
             $warnings[] = 'Warning: unexpected database modification, resetting DB state';
         }
         $oldcfg = self::get_global_backup('CFG');
         $oldsite = self::get_global_backup('SITE');
         foreach ($CFG as $k => $v) {
             if (!property_exists($oldcfg, $k)) {
                 $warnings[] = 'Warning: unexpected new $CFG->' . $k . ' value';
             } else {
                 if ($oldcfg->{$k} !== $CFG->{$k}) {
                     $warnings[] = 'Warning: unexpected change of $CFG->' . $k . ' value';
                 }
             }
             unset($oldcfg->{$k});
         }
         if ($oldcfg) {
             foreach ($oldcfg as $k => $v) {
                 $warnings[] = 'Warning: unexpected removal of $CFG->' . $k;
             }
         }
         if ($USER->id != 0) {
             $warnings[] = 'Warning: unexpected change of $USER';
         }
         if ($COURSE->id != $oldsite->id) {
             $warnings[] = 'Warning: unexpected change of $COURSE';
         }
     }
     if (ini_get('max_execution_time') != 0) {
         // This is special warning for all resets because we do not want any
         // libraries to mess with timeouts unintentionally.
         // Our PHPUnit integration is not supposed to change it either.
         if ($detectchanges !== false) {
             $warnings[] = 'Warning: max_execution_time was changed to ' . ini_get('max_execution_time');
         }
         set_time_limit(0);
     }
     // restore original globals
     $_SERVER = self::get_global_backup('_SERVER');
     $CFG = self::get_global_backup('CFG');
     $SITE = self::get_global_backup('SITE');
     $_GET = array();
     $_POST = array();
     $_FILES = array();
     $_REQUEST = array();
     $COURSE = $SITE;
     // reinitialise following globals
     $OUTPUT = new bootstrap_renderer();
     $PAGE = new moodle_page();
     $FULLME = null;
     $ME = null;
     $SCRIPT = null;
     // Empty sessison and set fresh new not-logged-in user.
     \core\session\manager::init_empty_session();
     // reset all static caches
     \core\event\manager::phpunit_reset();
     accesslib_clear_all_caches(true);
     get_string_manager()->reset_caches(true);
     reset_text_filters_cache(true);
     events_get_handlers('reset');
     core_text::reset_caches();
     get_message_processors(false, true);
     filter_manager::reset_caches();
     // Reset internal users.
     core_user::reset_internal_users();
     //TODO MDL-25290: add more resets here and probably refactor them to new core function
//.........这里部分代码省略.........

 /**
  * Tests that the filter applies the required changes.
  *
  * @return void
  */
 public function test_filter()
 {
     $this->resetAfterTest(true);
     $this->setAdminUser();
     filter_manager::reset_caches();
     filter_set_global_state('data', TEXTFILTER_ON);
     $course1 = $this->getDataGenerator()->create_course();
     $coursecontext1 = context_course::instance($course1->id);
     $course2 = $this->getDataGenerator()->create_course();
     $coursecontext2 = context_course::instance($course2->id);
     $sitecontext = context_course::instance(SITEID);
     $site = get_site();
     $this->add_simple_database_instance($site, array('SiteEntry'));
     $this->add_simple_database_instance($course1, array('CourseEntry'));
     $html = '<p>I like CourseEntry and SiteEntry</p>';
     // Testing at course level (both site and course).
     $filtered = format_text($html, FORMAT_HTML, array('context' => $coursecontext1));
     $this->assertRegExp('/title=(\'|")CourseEntry(\'|")/', $filtered);
     $this->assertRegExp('/title=(\'|")SiteEntry(\'|")/', $filtered);
     // Testing at site level (only site).
     $filtered = format_text($html, FORMAT_HTML, array('context' => $sitecontext));
     $this->assertNotRegExp('/title=(\'|")CourseEntry(\'|")/', $filtered);
     $this->assertRegExp('/title=(\'|")SiteEntry(\'|")/', $filtered);
     // Changing to another course to test the caches invalidation (only site).
     $filtered = format_text($html, FORMAT_HTML, array('context' => $coursecontext2));
     $this->assertNotRegExp('/title=(\'|")CourseEntry(\'|")/', $filtered);
     $this->assertRegExp('/title=(\'|")SiteEntry(\'|")/', $filtered);
 }

 /**
  * Helper method to apply filters to some text and return the result.
  * @param string $text the text to filter.
  * @param array $skipfilters any filters not to apply, even if they are configured.
  * @return string the filtered text.
  */
 protected function filter_text($text, $skipfilters)
 {
     global $PAGE;
     $filtermanager = filter_manager::instance();
     $filtermanager->setup_page_for_filters($PAGE, $PAGE->context);
     $filteroptions = array('originalformat' => FORMAT_HTML, 'noclean' => false);
     return $filtermanager->filter_text($text, $PAGE->context, $filteroptions, $skipfilters);
 }

/**
 * Given some text in HTML format, this function will pass it
 * through any filters that have been configured for this context.
 *
 * @deprecated use the text formatting in a standard way instead,
 *             this was abused mostly for embedding of attachments
 *
 * @param string $text The text to be passed through format filters
 * @param int $courseid The current course.
 * @return string the filtered string.
 */
function filter_text($text, $courseid = NULL)
{
    global $CFG, $COURSE;
    if (!$courseid) {
        $courseid = $COURSE->id;
    }
    if (!($context = context_course::instance($courseid, IGNORE_MISSING))) {
        return $text;
    }
    return filter_manager::instance()->filter_text($text, $context);
}

/**
 * Given some text in HTML format, this function will pass it
 * through any filters that have been configured for this context.
 *
 * @deprecated use the text formatting in a standard way instead,
 *             this was abused mostly for embedding of attachments
 *
 * @param string $text The text to be passed through format filters
 * @param int $courseid The current course.
 * @return string the filtered string.
 */
function filter_text($text, $courseid = NULL)
{
    global $CFG, $COURSE;
    if (!$courseid) {
        $courseid = $COURSE->id;
    }
    if (!($context = get_context_instance(CONTEXT_COURSE, $courseid))) {
        return $text;
    }
    return filter_manager::instance()->filter_text($text, $context);
}

 public function test_filter_external_file()
 {
     global $CFG;
     $this->resetAfterTest(true);
     $this->setAdminUser();
     filter_manager::reset_caches();
     filter_set_global_state('viewerjs', TEXTFILTER_ON);
     $course1 = $this->getDataGenerator()->create_course();
     $coursecontext1 = context_course::instance($course1->id);
     $url = 'http://www.example.org/frog.ppt';
     $html = '<a href= "' . $url . '">Link</a>';
     $this->assertContains($url, format_text($html, FORMAT_HTML, array('context' => $coursecontext1)), 'did not transform external url');
     $url = 'http://www.example.org/frog.pdf';
     $html = '<a href= "' . $url . '">Link</a>';
     $this->assertContains($url, format_text($html, FORMAT_HTML, array('context' => $coursecontext1)), 'did not transform external url even though it had a supported extension');
 }

 /**
  * Test ampersands.
  */
 public function test_ampersands()
 {
     global $CFG;
     $this->resetAfterTest(true);
     // Enable glossary filter at top level.
     filter_set_global_state('glossary', TEXTFILTER_ON);
     $CFG->glossary_linkentries = 1;
     // Create a test course.
     $course = $this->getDataGenerator()->create_course();
     $context = context_course::instance($course->id);
     // Create a glossary.
     $glossary = $this->getDataGenerator()->create_module('glossary', array('course' => $course->id, 'mainglossary' => 1));
     // Create two entries with ampersands and one normal entry.
     /** @var mod_glossary_generator $generator */
     $generator = $this->getDataGenerator()->get_plugin_generator('mod_glossary');
     $normal = $generator->create_content($glossary, array('concept' => 'normal'));
     $amp1 = $generator->create_content($glossary, array('concept' => 'A&B'));
     $amp2 = $generator->create_content($glossary, array('concept' => 'C&D'));
     filter_manager::reset_caches();
     \mod_glossary\local\concept_cache::reset_caches();
     // Format text with all three entries in HTML.
     $html = '<p>A&amp;B C&amp;D normal</p>';
     $filtered = format_text($html, FORMAT_HTML, array('context' => $context));
     // Find all the glossary links in the result.
     $matches = array();
     preg_match_all('~eid=([0-9]+).*?title="(.*?)"~', $filtered, $matches);
     // There should be 3 glossary links.
     $this->assertEquals(3, count($matches[1]));
     $this->assertEquals($amp1->id, $matches[1][0]);
     $this->assertEquals($amp2->id, $matches[1][1]);
     $this->assertEquals($normal->id, $matches[1][2]);
     // Check text and escaping of title attribute.
     $this->assertEquals($glossary->name . ': A&amp;B', $matches[2][0]);
     $this->assertEquals($glossary->name . ': C&amp;D', $matches[2][1]);
     $this->assertEquals($glossary->name . ': normal', $matches[2][2]);
 }

/**
 * Given some text in HTML format, this function will pass it
 * through any filters that have been configured for this context.
 *
 * @param string $text The text to be passed through format filters
 * @param int $courseid The current course.
 * @return string the filtered string.
 */
function filter_text($text, $courseid = NULL)
{
    global $CFG, $COURSE, $PAGE;
    if (empty($courseid)) {
        $courseid = $COURSE->id;
        // (copied from format_text)
    }
    $context = $PAGE->context;
    return filter_manager::instance()->filter_text($text, $context, $courseid);
}

/**
 * get_performance_info() pairs up with init_performance_info()
 * loaded in setup.php. Returns an array with 'html' and 'txt'
 * values ready for use, and each of the individual stats provided
 * separately as well.
 *
 * @return array
 */
function get_performance_info() {
    global $CFG, $PERF, $DB, $PAGE;

    $info = array();
    $info['html'] = '';         // Holds userfriendly HTML representation.
    $info['txt']  = me() . ' '; // Holds log-friendly representation.

    $info['realtime'] = microtime_diff($PERF->starttime, microtime());

    $info['html'] .= '<span class="timeused">'.$info['realtime'].' secs</span> ';
    $info['txt'] .= 'time: '.$info['realtime'].'s ';

    if (function_exists('memory_get_usage')) {
        $info['memory_total'] = memory_get_usage();
        $info['memory_growth'] = memory_get_usage() - $PERF->startmemory;
        $info['html'] .= '<span class="memoryused">RAM: '.display_size($info['memory_total']).'</span> ';
        $info['txt']  .= 'memory_total: '.$info['memory_total'].'B (' . display_size($info['memory_total']).') memory_growth: '.
            $info['memory_growth'].'B ('.display_size($info['memory_growth']).') ';
    }

    if (function_exists('memory_get_peak_usage')) {
        $info['memory_peak'] = memory_get_peak_usage();
        $info['html'] .= '<span class="memoryused">RAM peak: '.display_size($info['memory_peak']).'</span> ';
        $info['txt']  .= 'memory_peak: '.$info['memory_peak'].'B (' . display_size($info['memory_peak']).') ';
    }

    $inc = get_included_files();
    $info['includecount'] = count($inc);
    $info['html'] .= '<span class="included">Included '.$info['includecount'].' files</span> ';
    $info['txt']  .= 'includecount: '.$info['includecount'].' ';

    if (!empty($CFG->early_install_lang) or empty($PAGE)) {
        // We can not track more performance before installation or before PAGE init, sorry.
        return $info;
    }

    $filtermanager = filter_manager::instance();
    if (method_exists($filtermanager, 'get_performance_summary')) {
        list($filterinfo, $nicenames) = $filtermanager->get_performance_summary();
        $info = array_merge($filterinfo, $info);
        foreach ($filterinfo as $key => $value) {
            $info['html'] .= "<span class='$key'>$nicenames[$key]: $value </span> ";
            $info['txt'] .= "$key: $value ";
        }
    }

    $stringmanager = get_string_manager();
    if (method_exists($stringmanager, 'get_performance_summary')) {
        list($filterinfo, $nicenames) = $stringmanager->get_performance_summary();
        $info = array_merge($filterinfo, $info);
        foreach ($filterinfo as $key => $value) {
            $info['html'] .= "<span class='$key'>$nicenames[$key]: $value </span> ";
            $info['txt'] .= "$key: $value ";
        }
    }

    if (!empty($PERF->logwrites)) {
        $info['logwrites'] = $PERF->logwrites;
        $info['html'] .= '<span class="logwrites">Log DB writes '.$info['logwrites'].'</span> ';
        $info['txt'] .= 'logwrites: '.$info['logwrites'].' ';
    }

    $info['dbqueries'] = $DB->perf_get_reads().'/'.($DB->perf_get_writes() - $PERF->logwrites);
    $info['html'] .= '<span class="dbqueries">DB reads/writes: '.$info['dbqueries'].'</span> ';
    $info['txt'] .= 'db reads/writes: '.$info['dbqueries'].' ';

    $info['dbtime'] = round($DB->perf_get_queries_time(), 5);
    $info['html'] .= '<span class="dbtime">DB queries time: '.$info['dbtime'].' secs</span> ';
    $info['txt'] .= 'db queries time: ' . $info['dbtime'] . 's ';

    if (function_exists('posix_times')) {
        $ptimes = posix_times();
        if (is_array($ptimes)) {
            foreach ($ptimes as $key => $val) {
                $info[$key] = $ptimes[$key] -  $PERF->startposixtimes[$key];
            }
            $info['html'] .= "<span class=\"posixtimes\">ticks: $info[ticks] user: $info[utime] sys: $info[stime] cuser: $info[cutime] csys: $info[cstime]</span> ";
            $info['txt'] .= "ticks: $info[ticks] user: $info[utime] sys: $info[stime] cuser: $info[cutime] csys: $info[cstime] ";
        }
    }

    // Grab the load average for the last minute.
    // /proc will only work under some linux configurations
    // while uptime is there under MacOSX/Darwin and other unices.
    if (is_readable('/proc/loadavg') && $loadavg = @file('/proc/loadavg')) {
        list($serverload) = explode(' ', $loadavg[0]);
        unset($loadavg);
    } else if ( function_exists('is_executable') && is_executable('/usr/bin/uptime') && $loadavg = `/usr/bin/uptime` ) {
        if (preg_match('/load averages?: (\d+[\.,:]\d+)/', $loadavg, $matches)) {
            $serverload = $matches[1];
        } else {
            trigger_error('Could not parse uptime output!');
//.........这里部分代码省略.........

/**
 * get_performance_info() pairs up with init_performance_info()
 * loaded in setup.php. Returns an array with 'html' and 'txt'
 * values ready for use, and each of the individual stats provided
 * separately as well.
 *
 * @global object
 * @global object
 * @global object
 * @return array
 */
function get_performance_info()
{
    global $CFG, $PERF, $DB, $PAGE;
    $info = array();
    $info['html'] = '';
    // holds userfriendly HTML representation
    $info['txt'] = me() . ' ';
    // holds log-friendly representation
    $info['realtime'] = microtime_diff($PERF->starttime, microtime());
    $info['html'] .= '<span class="timeused">' . $info['realtime'] . ' secs</span> ';
    $info['txt'] .= 'time: ' . $info['realtime'] . 's ';
    if (function_exists('memory_get_usage')) {
        $info['memory_total'] = memory_get_usage();
        $info['memory_growth'] = memory_get_usage() - $PERF->startmemory;
        $info['html'] .= '<span class="memoryused">RAM: ' . display_size($info['memory_total']) . '</span> ';
        $info['txt'] .= 'memory_total: ' . $info['memory_total'] . 'B (' . display_size($info['memory_total']) . ') memory_growth: ' . $info['memory_growth'] . 'B (' . display_size($info['memory_growth']) . ') ';
    }
    if (function_exists('memory_get_peak_usage')) {
        $info['memory_peak'] = memory_get_peak_usage();
        $info['html'] .= '<span class="memoryused">RAM peak: ' . display_size($info['memory_peak']) . '</span> ';
        $info['txt'] .= 'memory_peak: ' . $info['memory_peak'] . 'B (' . display_size($info['memory_peak']) . ') ';
    }
    $inc = get_included_files();
    //error_log(print_r($inc,1));
    $info['includecount'] = count($inc);
    $info['html'] .= '<span class="included">Included ' . $info['includecount'] . ' files</span> ';
    $info['txt'] .= 'includecount: ' . $info['includecount'] . ' ';
    $filtermanager = filter_manager::instance();
    if (method_exists($filtermanager, 'get_performance_summary')) {
        list($filterinfo, $nicenames) = $filtermanager->get_performance_summary();
        $info = array_merge($filterinfo, $info);
        foreach ($filterinfo as $key => $value) {
            $info['html'] .= "<span class='{$key}'>{$nicenames[$key]}: {$value} </span> ";
            $info['txt'] .= "{$key}: {$value} ";
        }
    }
    $stringmanager = get_string_manager();
    if (method_exists($stringmanager, 'get_performance_summary')) {
        list($filterinfo, $nicenames) = $stringmanager->get_performance_summary();
        $info = array_merge($filterinfo, $info);
        foreach ($filterinfo as $key => $value) {
            $info['html'] .= "<span class='{$key}'>{$nicenames[$key]}: {$value} </span> ";
            $info['txt'] .= "{$key}: {$value} ";
        }
    }
    $jsmodules = $PAGE->requires->get_loaded_modules();
    if ($jsmodules) {
        $yuicount = 0;
        $othercount = 0;
        $details = '';
        foreach ($jsmodules as $module => $backtraces) {
            if (strpos($module, 'yui') === 0) {
                $yuicount += 1;
            } else {
                $othercount += 1;
            }
            $details .= "<div class='yui-module'><p>{$module}</p>";
            foreach ($backtraces as $backtrace) {
                $details .= "<div class='backtrace'>{$backtrace}</div>";
            }
            $details .= '</div>';
        }
        $info['html'] .= "<span class='includedyuimodules'>Included YUI modules: {$yuicount}</span> ";
        $info['txt'] .= "includedyuimodules: {$yuicount} ";
        $info['html'] .= "<span class='includedjsmodules'>Other JavaScript modules: {$othercount}</span> ";
        $info['txt'] .= "includedjsmodules: {$othercount} ";
        // Slightly odd to output the details in a display: none div. The point
        // Is that it takes a lot of space, and if you care you can reveal it
        // using firebug.
        $info['html'] .= '<div id="yui-module-debug" class="notifytiny">' . $details . '</div>';
    }
    if (!empty($PERF->logwrites)) {
        $info['logwrites'] = $PERF->logwrites;
        $info['html'] .= '<span class="logwrites">Log DB writes ' . $info['logwrites'] . '</span> ';
        $info['txt'] .= 'logwrites: ' . $info['logwrites'] . ' ';
    }
    $info['dbqueries'] = $DB->perf_get_reads() . '/' . ($DB->perf_get_writes() - $PERF->logwrites);
    $info['html'] .= '<span class="dbqueries">DB reads/writes: ' . $info['dbqueries'] . '</span> ';
    $info['txt'] .= 'db reads/writes: ' . $info['dbqueries'] . ' ';
    if (!empty($PERF->profiling) && $PERF->profiling) {
        require_once $CFG->dirroot . '/lib/profilerlib.php';
        $info['html'] .= '<span class="profilinginfo">' . Profiler::get_profiling(array('-R')) . '</span>';
    }
    if (function_exists('posix_times')) {
        $ptimes = posix_times();
        if (is_array($ptimes)) {
            foreach ($ptimes as $key => $val) {
                $info[$key] = $ptimes[$key] - $PERF->startposixtimes[$key];
            }
//.........这里部分代码省略.........

 public function test_external_format_string()
 {
     $this->resetAfterTest();
     $settings = external_settings::get_instance();
     $currentraw = $settings->get_raw();
     $currentfilter = $settings->get_filter();
     // Enable multilang filter to on content and heading.
     filter_set_global_state('multilang', TEXTFILTER_ON);
     filter_set_applies_to_strings('multilang', 1);
     $filtermanager = filter_manager::instance();
     $filtermanager->reset_caches();
     $settings->set_raw(true);
     $settings->set_filter(true);
     $context = context_system::instance();
     $test = '<span lang="en" class="multilang">EN</span><span lang="fr" class="multilang">FR</span> ' . '<script>hi</script> <h3>there</h3>!';
     $correct = $test;
     $this->assertSame($correct, external_format_string($test, $context->id));
     $settings->set_raw(false);
     $settings->set_filter(false);
     $test = '<span lang="en" class="multilang">EN</span><span lang="fr" class="multilang">FR</span> ' . '<script>hi</script> <h3>there</h3>?';
     $correct = 'ENFR hi there?';
     $this->assertSame($correct, external_format_string($test, $context->id));
     $settings->set_filter(true);
     $test = '<span lang="en" class="multilang">EN</span><span lang="fr" class="multilang">FR</span> ' . '<script>hi</script> <h3>there</h3>@';
     $correct = 'EN hi there@';
     $this->assertSame($correct, external_format_string($test, $context->id));
     // Filters can be opted out.
     $test = '<span lang="en" class="multilang">EN</span><span lang="fr" class="multilang">FR</span> ' . '<script>hi</script> <h3>there</h3>%';
     $correct = 'ENFR hi there%';
     $this->assertSame($correct, external_format_string($test, $context->id, false, ['filter' => false]));
     $settings->set_raw($currentraw);
     $settings->set_filter($currentfilter);
 }

 /**
  * Test a categories ability to resort courses.
  */
 public function test_resort_courses()
 {
     $this->resetAfterTest(true);
     $generator = $this->getDataGenerator();
     $category = $generator->create_category();
     $course1 = $generator->create_course(array('category' => $category->id, 'idnumber' => '006-01', 'shortname' => 'Biome Study', 'fullname' => '<span lang="ar" class="multilang">' . 'دراسة منطقة إحيائية' . '</span><span lang="en" class="multilang">Biome Study</span>', 'timecreated' => '1000000001'));
     $course2 = $generator->create_course(array('category' => $category->id, 'idnumber' => '007-02', 'shortname' => 'Chemistry Revision', 'fullname' => 'Chemistry Revision', 'timecreated' => '1000000002'));
     $course3 = $generator->create_course(array('category' => $category->id, 'idnumber' => '007-03', 'shortname' => 'Swiss Rolls and Sunflowers', 'fullname' => 'Aarkvarks guide to Swiss Rolls and Sunflowers', 'timecreated' => '1000000003'));
     $course4 = $generator->create_course(array('category' => $category->id, 'idnumber' => '006-04', 'shortname' => 'Scratch', 'fullname' => '<a href="test.php">Basic Scratch</a>', 'timecreated' => '1000000004'));
     $c1 = (int) $course1->id;
     $c2 = (int) $course2->id;
     $c3 = (int) $course3->id;
     $c4 = (int) $course4->id;
     $coursecat = coursecat::get($category->id);
     $this->assertTrue($coursecat->resort_courses('idnumber'));
     $this->assertSame(array($c1, $c4, $c2, $c3), array_keys($coursecat->get_courses()));
     $this->assertTrue($coursecat->resort_courses('shortname'));
     $this->assertSame(array($c1, $c2, $c4, $c3), array_keys($coursecat->get_courses()));
     $this->assertTrue($coursecat->resort_courses('timecreated'));
     $this->assertSame(array($c1, $c2, $c3, $c4), array_keys($coursecat->get_courses()));
     try {
         // Enable the multilang filter and set it to apply to headings and content.
         filter_manager::reset_caches();
         filter_set_global_state('multilang', TEXTFILTER_ON);
         filter_set_applies_to_strings('multilang', true);
         $expected = array($c3, $c4, $c1, $c2);
     } catch (coding_exception $ex) {
         $expected = array($c3, $c4, $c2, $c1);
     }
     $this->assertTrue($coursecat->resort_courses('fullname'));
     $this->assertSame($expected, array_keys($coursecat->get_courses()));
 }

/**
 * get_performance_info() pairs up with init_performance_info()
 * loaded in setup.php. Returns an array with 'html' and 'txt'
 * values ready for use, and each of the individual stats provided
 * separately as well.
 *
 * @return array
 */
function get_performance_info()
{
    global $CFG, $PERF, $DB, $PAGE;
    $info = array();
    $info['html'] = '';
    // Holds userfriendly HTML representation.
    $info['txt'] = me() . ' ';
    // Holds log-friendly representation.
    $info['realtime'] = microtime_diff($PERF->starttime, microtime());
    $info['html'] .= '<span class="timeused">' . $info['realtime'] . ' secs</span> ';
    $info['txt'] .= 'time: ' . $info['realtime'] . 's ';
    if (function_exists('memory_get_usage')) {
        $info['memory_total'] = memory_get_usage();
        $info['memory_growth'] = memory_get_usage() - $PERF->startmemory;
        $info['html'] .= '<span class="memoryused">RAM: ' . display_size($info['memory_total']) . '</span> ';
        $info['txt'] .= 'memory_total: ' . $info['memory_total'] . 'B (' . display_size($info['memory_total']) . ') memory_growth: ' . $info['memory_growth'] . 'B (' . display_size($info['memory_growth']) . ') ';
    }
    if (function_exists('memory_get_peak_usage')) {
        $info['memory_peak'] = memory_get_peak_usage();
        $info['html'] .= '<span class="memoryused">RAM peak: ' . display_size($info['memory_peak']) . '</span> ';
        $info['txt'] .= 'memory_peak: ' . $info['memory_peak'] . 'B (' . display_size($info['memory_peak']) . ') ';
    }
    $inc = get_included_files();
    $info['includecount'] = count($inc);
    $info['html'] .= '<span class="included">Included ' . $info['includecount'] . ' files</span> ';
    $info['txt'] .= 'includecount: ' . $info['includecount'] . ' ';
    if (!empty($CFG->early_install_lang) or empty($PAGE)) {
        // We can not track more performance before installation or before PAGE init, sorry.
        return $info;
    }
    $filtermanager = filter_manager::instance();
    if (method_exists($filtermanager, 'get_performance_summary')) {
        list($filterinfo, $nicenames) = $filtermanager->get_performance_summary();
        $info = array_merge($filterinfo, $info);
        foreach ($filterinfo as $key => $value) {
            $info['html'] .= "<span class='{$key}'>{$nicenames[$key]}: {$value} </span> ";
            $info['txt'] .= "{$key}: {$value} ";
        }
    }
    $stringmanager = get_string_manager();
    if (method_exists($stringmanager, 'get_performance_summary')) {
        list($filterinfo, $nicenames) = $stringmanager->get_performance_summary();
        $info = array_merge($filterinfo, $info);
        foreach ($filterinfo as $key => $value) {
            $info['html'] .= "<span class='{$key}'>{$nicenames[$key]}: {$value} </span> ";
            $info['txt'] .= "{$key}: {$value} ";
        }
    }
    $jsmodules = $PAGE->requires->get_loaded_modules();
    if ($jsmodules) {
        $yuicount = 0;
        $othercount = 0;
        $details = '';
        foreach ($jsmodules as $module => $backtraces) {
            if (strpos($module, 'yui') === 0) {
                $yuicount += 1;
            } else {
                $othercount += 1;
            }
            if (!empty($CFG->yuimoduledebug)) {
                // Hidden feature for developers working on YUI module infrastructure.
                $details .= "<div class='yui-module'><p>{$module}</p>";
                foreach ($backtraces as $backtrace) {
                    $details .= "<div class='backtrace'>{$backtrace}</div>";
                }
                $details .= '</div>';
            }
        }
        $info['html'] .= "<span class='includedyuimodules'>Included YUI modules: {$yuicount}</span> ";
        $info['txt'] .= "includedyuimodules: {$yuicount} ";
        $info['html'] .= "<span class='includedjsmodules'>Other JavaScript modules: {$othercount}</span> ";
        $info['txt'] .= "includedjsmodules: {$othercount} ";
        if ($details) {
            $info['html'] .= '<div id="yui-module-debug" class="notifytiny">' . $details . '</div>';
        }
    }
    if (!empty($PERF->logwrites)) {
        $info['logwrites'] = $PERF->logwrites;
        $info['html'] .= '<span class="logwrites">Log DB writes ' . $info['logwrites'] . '</span> ';
        $info['txt'] .= 'logwrites: ' . $info['logwrites'] . ' ';
    }
    $info['dbqueries'] = $DB->perf_get_reads() . '/' . ($DB->perf_get_writes() - $PERF->logwrites);
    $info['html'] .= '<span class="dbqueries">DB reads/writes: ' . $info['dbqueries'] . '</span> ';
    $info['txt'] .= 'db reads/writes: ' . $info['dbqueries'] . ' ';
    if (function_exists('posix_times')) {
        $ptimes = posix_times();
        if (is_array($ptimes)) {
            foreach ($ptimes as $key => $val) {
                $info[$key] = $ptimes[$key] - $PERF->startposixtimes[$key];
            }
            $info['html'] .= "<span class=\"posixtimes\">ticks: {$info['ticks']} user: {$info['utime']} sys: {$info['stime']} cuser: {$info['cutime']} csys: {$info['cstime']}</span> ";
            $info['txt'] .= "ticks: {$info['ticks']} user: {$info['utime']} sys: {$info['stime']} cuser: {$info['cutime']} csys: {$info['cstime']} ";
//.........这里部分代码省略.........

/**
* 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;
}

 /**
  * Method for use by Moodle core to set up the theme. Do not
  * use this in your own code.
  *
  * Make sure the right theme for this page is loaded. Tell our
  * blocks_manager about the theme block regions, and then, if
  * we are $PAGE, set up the global $OUTPUT.
  *
  * @return void
  */
 public function initialise_theme_and_output()
 {
     global $OUTPUT, $PAGE, $SITE, $CFG;
     if (!empty($this->_wherethemewasinitialised)) {
         return;
     }
     if (!during_initial_install()) {
         // Detect PAGE->context mess.
         $this->magic_get_context();
     }
     if (!$this->_course && !during_initial_install()) {
         $this->set_course($SITE);
     }
     if (is_null($this->_theme)) {
         $themename = $this->resolve_theme();
         $this->_theme = theme_config::load($themename);
     }
     $this->_theme->setup_blocks($this->pagelayout, $this->blocks);
     if ($this->_theme->enable_dock && !empty($CFG->allowblockstodock)) {
         $this->requires->strings_for_js(array('addtodock', 'undockitem', 'dockblock', 'undockblock', 'undockall', 'hidedockpanel', 'hidepanel'), 'block');
         $this->requires->string_for_js('thisdirectionvertical', 'langconfig');
         $this->requires->yui_module('moodle-core-dock-loader', 'M.core.dock.loader.initLoader');
     }
     if ($this === $PAGE) {
         $target = null;
         if ($this->pagelayout === 'maintenance') {
             // If the page is using the maintenance layout then we're going to force target to maintenance.
             // This leads to a special core renderer that is designed to block access to API's that are likely unavailable for this
             // page layout.
             $target = RENDERER_TARGET_MAINTENANCE;
         }
         $OUTPUT = $this->get_renderer('core', null, $target);
     }
     if (!during_initial_install()) {
         $filtermanager = filter_manager::instance();
         $filtermanager->setup_page_for_globally_available_filters($this);
     }
     $this->_wherethemewasinitialised = debug_backtrace();
 }