Private Access Private Access
This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness. Use get_shortcode_regex instead.
Summery Summery
Regular Expression callable for do_shortcode() for calling shortcode hook.
Syntax Syntax
Parameters Parameters
- $m
-
(Required) Regular expression match array
Return Return
(string|false) False on failure.
Source Source
File: wp-includes/shortcodes.php
function do_shortcode_tag( $m ) { global $shortcode_tags; // Allow [[foo]] syntax for escaping a tag. if ( '[' === $m[1] && ']' === $m[6] ) { return substr( $m[0], 1, -1 ); } $tag = $m[2]; $attr = shortcode_parse_atts( $m[3] ); if ( ! is_callable( $shortcode_tags[ $tag ] ) ) { /* translators: %s: Shortcode tag. */ $message = sprintf( __( 'Attempting to parse a shortcode without a valid callback: %s' ), $tag ); _doing_it_wrong( __FUNCTION__, $message, '4.3.0' ); return $m[0]; } /** * Filters whether to call a shortcode callback. * * Returning a non-false value from filter will short-circuit the * shortcode generation process, returning that value instead. * * @since 4.7.0 * * @param false|string $return Short-circuit return value. Either false or the value to replace the shortcode with. * @param string $tag Shortcode name. * @param array|string $attr Shortcode attributes array or empty string. * @param array $m Regular expression match array. */ $return = apply_filters( 'pre_do_shortcode_tag', false, $tag, $attr, $m ); if ( false !== $return ) { return $return; } $content = isset( $m[5] ) ? $m[5] : null; $output = $m[1] . call_user_func( $shortcode_tags[ $tag ], $attr, $content, $tag ) . $m[6]; /** * Filters the output created by a shortcode callback. * * @since 4.7.0 * * @param string $output Shortcode output. * @param string $tag Shortcode name. * @param array|string $attr Shortcode attributes array or empty string. * @param array $m Regular expression match array. */ return apply_filters( 'do_shortcode_tag', $output, $tag, $attr, $m ); }
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Changelog Changelog
Version | Description |
---|---|
2.5.0 | Introduced. |
See also See also
- get_shortcode_regex: for details of the match array contents.