The Basics

Why enroll?

The PSC courses environment offers instructors and students many features to help facilitate the most engaging and interactive learning experience possible. And we're adding new features all the time. Many of these feature, like in-depth instructor videos, announcements, and more, are available right away, just by browsing the available courses. But, some features require an extra level of personalization, and thus require enrollment in the course. Just to give you a taste, some of the exciting featurese available after enrollment include:

So, why not get started today?

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Last Modified: Friday, May 28, 2021 @ 12:26am

Debug Console

Close2 MBRequestSessionTimelineDatabase16Events16
$_GET
Array( ) Array(

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$_POST
Array( ) Array(

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$_COOKIE
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$_SERVER
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TMPDIR => /var/www/tmp,
TMP => /var/www/tmp,
PATH => /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin,
USER => apache,
HOME => /usr/share/httpd,
SCRIPT_NAME => /index.php,
REQUEST_URI => /help/courses/basics,
QUERY_STRING => ,
REQUEST_METHOD => GET,
SERVER_PROTOCOL => HTTP/1.1,
GATEWAY_INTERFACE => CGI/1.1,
REDIRECT_URL => /help/courses/basics,
REMOTE_PORT => 64196,
SCRIPT_FILENAME => /var/www/pulsars/index.php,
SERVER_ADMIN => root@localhost,
CONTEXT_DOCUMENT_ROOT => /var/www/pulsars,
CONTEXT_PREFIX => ,
REQUEST_SCHEME => https,
DOCUMENT_ROOT => /var/www/pulsars,
REMOTE_ADDR => 3.18.220.253,
SERVER_PORT => 443,
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SERVER_SOFTWARE => Apache/2.4.37 (Rocky Linux) OpenSSL/1.1.1k,
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HTTP_HOST => pulsars.nanograv.org,
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HTTP_ACCEPT => */*,
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HTTP_AUTHORIZATION => ,
REDIRECT_STATUS => 200,
REDIRECT_SSL_TLS_SNI => pulsars.nanograv.org,
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REDIRECT_SCRIPT_URI => https://pulsars.nanograv.org/help/courses/basics,
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REDIRECT_UNIQUE_ID => Z9Dh3c9SYwlwP3nOlFDBpAAAAIw,
REDIRECT_HTTP_AUTHORIZATION => ,
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2 ⇒ access
always ⇒
renew ⇒
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  • site 0.057 seconds (+0.016); 2.00 MB (0.000) - afterRoute
  • site 0.063 seconds (+0.006); 2.00 MB (0.000) - afterDispatch
  • site 0.066 seconds (+0.003); 2.00 MB (0.000) - onAfterRender
  • site 0.067 seconds (+0.001); 2.00 MB (0.000) - sessionStore
2 MB

16 Queries Logged: 0.014914512634277 seconds

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  2. DELETE
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  3. SELECT data
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  4. SELECT extension_id AS id,element AS "option",params,enabled
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      WHERE `type` = 'component'
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  7. SELECT extension_id AS id,element AS "option",params,enabled
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  8. SELECT b.id, b.title
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      LEFT JOIN jos_usergroups AS b
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  9. SELECT *
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  10. SELECT folder AS type,element AS name,protected,params
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      WHERE `enabled` >= '1'
      AND `type` = 'plugin'
      AND `state` >= '0'
      AND `access` IN ('1','1')
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      LEFT JOIN jos_extensions AS e
      ON e.extension_id = m.component_id
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      AND `m`.`parent_id` > '0'
      AND `m`.`client_id` = '0'
      ORDER BY `m`.`lft` ASC
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  • onAfterInitialise — Method — plgSystemP3p::onAfterInitialise → /core/plugins/system/p3p/p3p.php:21
  • onAfterInitialise — Method — plgSystemRemember::onAfterInitialise → /core/plugins/system/remember/remember.php:20
  • onAfterInitialise — Method — plgSystemHubzero::onAfterInitialise → /core/plugins/system/hubzero/hubzero.php:21
  • onAfterInitialise — Method — plgSystemXFeed::onAfterInitialise → /core/plugins/system/xfeed/xfeed.php:21
  • onAfterInitialise — Method — plgSystemSupergroup::onAfterInitialise → /core/plugins/system/supergroup/supergroup.php:113
  • onAfterInitialise — Method — plgSystemReferrerpolicy::onAfterInitialise → /core/plugins/system/referrerpolicy/referrerpolicy.php:21
  • onAfterRoute — Method — plgSystemJquery::onAfterRoute → /core/plugins/system/jquery/jquery.php:21
  • onAfterRoute — Method — plgSystemSpamjail::onAfterRoute → /core/plugins/system/spamjail/spamjail.php:21
  • onAfterRoute — Method — plgSystemIncomplete::onAfterRoute → /core/plugins/system/incomplete/incomplete.php:21
  • onAfterRoute — Method — plgSystemUnconfirmed::onAfterRoute → /core/plugins/system/unconfirmed/unconfirmed.php:21
  • onAfterRoute — Method — plgSystemUnapproved::onAfterRoute → /core/plugins/system/unapproved/unapproved.php:21
  • onAfterRoute — Method — plgSystemPassword::onAfterRoute → /core/plugins/system/password/password.php:21
  • onAfterDispatch — Method — plgSystemMobile::onAfterDispatch → /core/plugins/system/mobile/mobile.php:22
  • onAfterDispatch — Method — plgSystemDebug::onAfterDispatch → /core/plugins/system/debug/debug.php:60
  • onAfterDispatch — Method — PlgSystemHighlight::onAfterDispatch → /core/plugins/system/highlight/highlight.php:25
  • onAfterRender — Method — plgSystemSef::onAfterRender → /core/plugins/system/sef/sef.php:21