Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

Each TIDY_TAG_XXX represents a HTML tag. For example, TIDY_TAG_A represents a "<a href="XX">link</a>" tag.

The following constants are defined:

**tidy tag constants**
Constant	Notes
`TIDY_TAG_UNKNOWN`
`TIDY_TAG_A`
`TIDY_TAG_ABBR`
`TIDY_TAG_ACRONYM`
`TIDY_TAG_ALIGN`
`TIDY_TAG_APPLET`
`TIDY_TAG_AREA`
`TIDY_TAG_ARTICLE`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_ASIDE`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_AUDIO`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_B`
`TIDY_TAG_BASE`
`TIDY_TAG_BASEFONT`
`TIDY_TAG_BDI`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_BDO`
`TIDY_TAG_BGSOUND`
`TIDY_TAG_BIG`
`TIDY_TAG_BLINK`
`TIDY_TAG_BLOCKQUOTE`
`TIDY_TAG_BODY`
`TIDY_TAG_BR`
`TIDY_TAG_BUTTON`
`TIDY_TAG_CANVAS`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_CAPTION`
`TIDY_TAG_CENTER`
`TIDY_TAG_CITE`
`TIDY_TAG_CODE`
`TIDY_TAG_COL`
`TIDY_TAG_COLGROUP`
`TIDY_TAG_COMMAND`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_COMMENT`
`TIDY_TAG_DATALIST`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_DD`
`TIDY_TAG_DEL`
`TIDY_TAG_DETAILS`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_DFN`
`TIDY_TAG_DIALOG`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_DIR`
`TIDY_TAG_DIV`
`TIDY_TAG_DL`
`TIDY_TAG_DT`
`TIDY_TAG_EM`
`TIDY_TAG_EMBED`
`TIDY_TAG_FIELDSET`
`TIDY_TAG_FIGCAPTION`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_FIGURE`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_FONT`
`TIDY_TAG_FOOTER`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_FORM`
`TIDY_TAG_FRAME`
`TIDY_TAG_FRAMESET`
`TIDY_TAG_H1`
`TIDY_TAG_H2`
`TIDY_TAG_H3`
`TIDY_TAG_H4`
`TIDY_TAG_H5`
`TIDY_TAG_H6`
`TIDY_TAG_HEAD`
`TIDY_TAG_HEADER`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_HGROUP`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_HR`
`TIDY_TAG_HTML`
`TIDY_TAG_I`
`TIDY_TAG_IFRAME`
`TIDY_TAG_ILAYER`
`TIDY_TAG_IMG`
`TIDY_TAG_INPUT`
`TIDY_TAG_INS`
`TIDY_TAG_ISINDEX`
`TIDY_TAG_KBD`
`TIDY_TAG_KEYGEN`
`TIDY_TAG_LABEL`
`TIDY_TAG_LAYER`
`TIDY_TAG_LEGEND`
`TIDY_TAG_LI`
`TIDY_TAG_LINK`
`TIDY_TAG_LISTING`
`TIDY_TAG_MAIN`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_MAP`
`TIDY_TAG_MARK`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_MARQUEE`
`TIDY_TAG_MENU`
`TIDY_TAG_MENUITEM`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_META`
`TIDY_TAG_METER`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_MULTICOL`
`TIDY_TAG_NAV`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_NOBR`
`TIDY_TAG_NOEMBED`
`TIDY_TAG_NOFRAMES`
`TIDY_TAG_NOLAYER`
`TIDY_TAG_NOSAVE`
`TIDY_TAG_NOSCRIPT`
`TIDY_TAG_OBJECT`
`TIDY_TAG_OL`
`TIDY_TAG_OPTGROUP`
`TIDY_TAG_OPTION`
`TIDY_TAG_OUTPUT`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_P`
`TIDY_TAG_PARAM`
`TIDY_TAG_PLAINTEXT`
`TIDY_TAG_PRE`
`TIDY_TAG_PROGRESS`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_Q`
`TIDY_TAG_RB`
`TIDY_TAG_RBC`
`TIDY_TAG_RP`
`TIDY_TAG_RT`
`TIDY_TAG_RTC`
`TIDY_TAG_RUBY`
`TIDY_TAG_S`
`TIDY_TAG_SAMP`
`TIDY_TAG_SCRIPT`
`TIDY_TAG_SECTION`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_SELECT`
`TIDY_TAG_SERVER`
`TIDY_TAG_SERVLET`
`TIDY_TAG_SMALL`
`TIDY_TAG_SOURCE`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_SPACER`
`TIDY_TAG_SPAN`
`TIDY_TAG_STRIKE`
`TIDY_TAG_STRONG`
`TIDY_TAG_STYLE`
`TIDY_TAG_SUB`
`TIDY_TAG_SUMMARY`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_SUP`
`TIDY_TAG_TABLE`
`TIDY_TAG_TBODY`
`TIDY_TAG_TD`
`TIDY_TAG_TEMPLATE`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_TEXTAREA`
`TIDY_TAG_TFOOT`
`TIDY_TAG_TH`
`TIDY_TAG_THEAD`
`TIDY_TAG_TIME`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_TITLE`
`TIDY_TAG_TR`
`TIDY_TAG_TRACK`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_TT`
`TIDY_TAG_U`
`TIDY_TAG_UL`
`TIDY_TAG_VAR`
`TIDY_TAG_VIDEO`	Added in libtidy 5.0.0. Available as of PHP 7.4.0.
`TIDY_TAG_WBR`
`TIDY_TAG_XMP`

**tidy nodetype constants**
constant	description
`TIDY_NODETYPE_ROOT`	root node
`TIDY_NODETYPE_DOCTYPE`	doctype
`TIDY_NODETYPE_COMMENT`	HTML comment
`TIDY_NODETYPE_PROCINS`	Processing Instruction
`TIDY_NODETYPE_TEXT`	Text
`TIDY_NODETYPE_START`	start tag
`TIDY_NODETYPE_END`	end tag
`TIDY_NODETYPE_STARTEND`	empty tag
`TIDY_NODETYPE_CDATA`	CDATA
`TIDY_NODETYPE_SECTION`	XML section
`TIDY_NODETYPE_ASP`	ASP code
`TIDY_NODETYPE_JSTE`	JSTE code
`TIDY_NODETYPE_PHP`	PHP code
`TIDY_NODETYPE_XMLDECL`	XML declaration