# Constants
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**Please note:** This page is under construction and has not been finished yet.
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## Introduction
.....
## Directory constants
{% hint style="info" %}
In the table below `(hash)` refers to the :point\_right: [hash](https://userguide.e107.org/installation-and-maintenance/folders-files-hash#hash) generated upon installation of e107.
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| Constant | Description | Example value |
| ----------------------- | ----------- | ------------------------------------- |
| e\_ADMIN | | /e107\_admin/ |
| e\_ADMIN\_ABS | | /e107\_admin/ |
| e\_AVATAR | | ./e107\_media/(hash)/avatars/ |
| e\_AVATAR\_ABS | | /e107\_media/(hash)/avatars/ |
| e\_AVATAR\_DEFAULT | | ./e107\_media/(hash)/avatars/default/ |
| e\_AVATAR\_DEFAULT\_ABS | | /e107\_media/(hash)/avatars/default/ |
| e\_AVATAR\_UPLOAD | | ./e107\_media/(hash)/avatars/upload/ |
| e\_AVATAR\_UPLOAD\_ABS | | /e107\_media/(hash)/avatars/upload/ |
| e\_BACKUP | | ./e107\_system/(hash)/backup/ |
| e\_BOOTSTRAP | | ./e107\_web/bootstrap/ |
| e\_CACHE | | ./e107\_system/(hash)/cache/ |
| e\_CACHE\_CONTENT | | ./e107\_system/(hash)/cache/content/ |
| e\_CACHE\_DB | | ./e107\_system/(hash)/cache/db/ |
| e\_CACHE\_IMAGE | | ./e107\_system/(hash)/cache/images/ |
| e\_CACHE\_IMAGE\_ABS | | /e107\_system/(hash)/cache/images/ |
| e\_CACHE\_URL | | ./e107\_system/(hash)/cache/url/ |
| e\_CORE | | ./e107\_core/ |
| e\_CSS | | /e107\_web/css/ |
| e\_CSS\_ABS | | /e107\_web/css/ |
| e\_DOCROOT | | C:/webdev/www/ |
| e\_DOCS | | ./e107\_docs/help/ |
| e\_DOCS\_ABS | | /e107\_docs/ |
| e\_DOWNLOAD | | ./e107\_media/(hash)/files/ |
| e\_FILE | | ./e107\_files/ |
| e\_FILE\_ABS | | /e107\_files/ |
| e\_HANDLER | | ./e107\_handlers/ |
| e\_HELP | | ./e107\_docs/help/ |
| e\_HELP\_ABS | | /e107\_docs/help/ |
| e\_IMAGE | | ./e107\_images/ |
| e\_IMAGE\_ABS | | /e107\_images/ |
| e\_IMPORT | | ./e107\_system/(hash)/import/ |
| e\_IMPORT\_ABS | | |
| e\_JS | | /e107\_web/js/ |
| e\_JS\_ABS | | /e107\_web/js/ |
| e\_LANGUAGEDIR | | ./e107\_languages/ |
| e\_LOG | | ./e107\_system/(hash)/logs/ |
| e\_MEDIA | | ./e107\_media/(hash)/ |
| e\_MEDIA\_ABS | | /e107\_media/(hash)/ |
| e\_MEDIA\_BASE | | ./e107\_media/ |
| e\_MEDIA\_FILE | | ./e107\_media/(hash)/files/ |
| e\_MEDIA\_FILE\_ABS | | /e107\_media/(hash)/files/ |
| e\_MEDIA\_ICON | | ./e107\_media/(hash)/icons/ |
| e\_MEDIA\_ICON\_ABS | | /e107\_media/(hash)/icons/ |
| e\_MEDIA\_IMAGE | | ./e107\_media/(hash)/images/ |
| e\_MEDIA\_IMAGE\_ABS | | /e107\_media/(hash)/images/ |
| e\_MEDIA\_VIDEO | | ./e107\_media/(hash)/videos/ |
| e\_MEDIA\_VIDEO\_ABS | | /e107\_media/(hash)/videos/ |
| e\_PLUGIN | | ./e107\_plugins/ |
| e\_PLUGIN\_ABS | | /e107\_plugins/ |
| e\_ROOT | | C:\webdev\www\\ |
| e\_SYSTEM | | ./e107\_system/(hash)/ |
| e\_SYSTEM\_BASE | | ./e107\_system/ |
| e\_TEMP | | ./e107\_system/(hash)/temp/ |
| e\_THEME | | ./e107\_themes/ |
| e\_THEME\_ABS | | /e107\_themes/ |
| e\_UPLOAD | | ./e107\_system/(hash)/temp/ |
| e\_WEB | | ./e107\_web/ |
| e\_WEB\_ABS | | /e107\_web/ |
| e\_WEB\_CSS | | ./e107\_web/css/ |
| e\_WEB\_IMAGE | | ./e107\_web/images/ |
| e\_WEB\_IMAGE\_ABS | | /e107\_web/images/ |
| e\_WEB\_JS | | ./e107\_web/js/ |
## Path constants
| Constant | Description | Example value |
| ------------- | ----------- | ------------- |
| e\_HTTP | | |
| SITEURLBASE | | |
| SITEURL | | |
| e\_BASE | | |
| e\_BASE\_SELF | | |
| e\_SELF | | |
| THEME | | |
| THEME\_ABS | | |
| e\_ROOT | | |
| e\_ROUTE | | |
| e\_PAGE | | |
| e\_LOGIN | | |
## User constants
| Constant | Description | Example value |
| ---------------- | ------------------------------------------------ | --------------------------------------- |
| USER | Shows if a user is logged in
(boolean)
| 1 |
| USERCLASS | | |
| USERCLASS\_LIST | Userclasses the user belongs to | 253,254,250,251,0 |
| USERCURRENTVISIT | UNIX timestamp.... | 1615651180 |
| USEREMAIL | | |
| USERID | | 1 |
| USERIMAGE | | zaqRWcP-\_400x400.jpg |
| USERIP | | 0000:0000:0000:0000:0000:ffff:7f00:0001 |
| USERJOINED | | 1588259340 |
| USERLAN | | English |
| USERLV | | 1615499410 |
| USERNAME | | Administrator |
| USERPHOTO | | |
| USERSIGNATURE | | |
| USERTHEME | | |
| USERTIMEZONE | | UTC |
| USERURL | | |
| USERVISITS | | 82 |
## General Site Constants
| Constant | Description | Example value |
| --------------- | ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| SITEADMIN | | Administrator |
| SITEADMINEMAIL | | |
| SITEBUTTON | | /e107\_images/button.png |
| SITECONTACTINFO | | \My Company\\
13 My Address St.\
City, State, Country\
\Phone:\ 555-555-5555\
\Email:\ |
| SITEDESCRIPTION | | |
| SITEDISCLAIMER | | |
| SITEEMAIL | | |
| SITENAME | | MyWebsite |
| SITETAG | | e107 Website System |
| SITEURL | | |
| SITEURLBASE | | |
## Userclass constants
......
| Constant | ID | Description |
| -------------------- | --- | --------------------------------------------------------- |
| e\_UC\_PUBLIC | 0 | |
| e\_UC\_MAINADMIN | 250 | |
| e\_UC\_READONLY | 251 | |
| e\_UC\_GUEST | 252 | |
| e\_UC\_MEMBER | 253 | |
| e\_UC\_ADMIN | 254 | |
| e\_UC\_NOBODY | 255 | |
| e\_UC\_ADMINMOD | 249 | Admins (includes main admins) |
| e\_UC\_MODS | 248 | Moderators (who aren't admins) |
| e\_UC\_NEWUSER | 247 | Users in 'probationary' period |
| e\_UC\_BOTS | 246 | Reserved to identify search bots |
| e\_UC\_SPECIAL\_BASE | 243 | Assign class IDs 243 and above for fixed/special purposes |
| e\_UC\_SPECIAL\_END | 255 | Highest 'special' class |
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Userclass constants ID's 243 - 245 are reserved for future predefined user classes
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## Language constants
| Constant | Description | Example value |
| ----------- | ----------- | ------------- |
| e\_LAN | | |
| e\_LANCODE | | |
| e\_LANGUAGE | | |
| e\_LANLIST | | |
| e\_LANQRY | | |
## Development constants
// define('e*DEBUG', true); // Enable debug mode to allow displaying of errors* \
*// define('e\_HTTP\_STATIC', '**'); // Use a static subdomain for js/css/images etc.* \
*// define('e\_MOD\_REWRITE\_STATIC', true); // Rewrite static image urls.* \
*// define('e\_LOG\_CRITICAL', true); // log critical errors but do not display them to user.* \
*// define('e\_GIT', 'path-to-git'); // Path to GIT for developers* \
*// define('X-FRAME-SAMEORIGIN', false); // Option to override X-Frame-Options*\
*// define('e\_PDO, true); // Enable PDO mode (used in PHP > 7 and when mysql*\* methods are not available)
| Constant | Description | Example value |
| ----------------------- | ----------- | ------------- |
| e\_DEBUG | | 1 |
| e\_DEBUG\_CANONICAL | | |
| e\_DEBUG\_JS\_FOOTER | | |
| e\_DEVELOPER | | 1 |
| e\_MENU | | |
| e\_MOD\_REWRITE | | 1 |
| e\_MOD\_REWRITE\_MEDIA | | 1 |
| e\_MOD\_REWRITE\_STATIC | | 1 |
| e\_NOCACHE | | |
| e\_SECURITY\_LEVEL | | 5 |
| e\_SINGLE\_ENTRY | | |
| e\_TOKEN | | |
## Theme constants
| Constant | Description | Example value |
| -------------- | ----------- | -------------------------- |
| THEME | | ./e107\_themes/bootstrap3/ |
| THEME\_ABS | | /e107\_themes/bootstrap3/ |
| THEME\_LAYOUT | | jumbotron\_home |
| THEME\_LEGACY | | |
| THEME\_STYLE | | style.css |
| THEME\_VERSION | | 2.3 |
## Plugin constants
| Constant | Description | Example value |
| ------------------- | ----------- | ------------- |
| e\_PLUGIN\_DIR\_ABS | | |
### Core plugins
#### Social plugin
| Constant | Description | Example value |
| --------------- | ----------- | ------------- |
| XURL\_FACEBOOK | | |
| XURL\_TWITTER | | |
| XURL\_YOUTUBE | | |
| XURL\_GOOGLE | | |
| XURL\_LINKEDIN | | |
| XURL\_GITHUB | | |
| XURL\_FLICKR | | |
| XURL\_INSTAGRAM | | |
| XURL\_PINTEREST | | |
| XURL\_STEAM | | |
| XURL\_VIMEO | | |