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do_shortcode › WordPress Function
Since2.5.0
已弃用n/a
› do_shortcode ( $content, $ignore_html = false )
参数: (2) |
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Searches content for shortcodes and filter shortcodes through their hooks.
If there are no shortcode tags defined, then the content will be returned without any filtering. This might cause issues when plugins are disabled but the shortcode will still show up in the post or content.Related Functions: add_shortcode, do_shortcode_tag, wp_video_shortcode, wp_audio_shortcode, has_shortcode
源码
function do_shortcode( $content, $ignore_html = false ) { global $shortcode_tags; if ( ! str_contains( $content, '[' ) ) { return $content; } if ( empty( $shortcode_tags ) || ! is_array( $shortcode_tags ) ) { return $content; } // Find all registered tag names in $content. preg_match_all( '@\[([^<>&/\[\]\x00-\x20=]++)@', $content, $matches ); $tagnames = array_intersect( array_keys( $shortcode_tags ), $matches[1] ); if ( empty( $tagnames ) ) { return $content; } // Ensure this context is only added once if shortcodes are nested. $has_filter = has_filter( 'wp_get_attachment_image_context', '_filter_do_shortcode_context' ); $filter_added = false; if ( ! $has_filter ) { $filter_added = add_filter( 'wp_get_attachment_image_context', '_filter_do_shortcode_context' ); } $content = do_shortcodes_in_html_tags( $content, $ignore_html, $tagnames ); $pattern = get_shortcode_regex( $tagnames ); $content = preg_replace_callback( "/$pattern/", 'do_shortcode_tag', $content ); // Always restore square braces so we don't break things like <!--[if IE ]>. $content = unescape_invalid_shortcodes( $content ); // Only remove the filter if it was added in this scope. if ( $filter_added ) { remove_filter( 'wp_get_attachment_image_context', '_filter_do_shortcode_context' ); } return $content; }