do_shortcode() – Search content for shortcodes and filter shortcodes through their hooks.

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Description

Search 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.

Usage

$string = do_shortcode( $content, $ignore_html );

Parameters

$content
( string ) required – Content to search for shortcodes.
$ignore_html
( bool ) optional – When true, shortcodes inside HTML elements will be skipped. Default false.

Returns

string Content with shortcodes filtered out.

Source

File name: wordpress/wp-includes/shortcodes.php
Lines:

1 to 29 of 29
function do_shortcode( $content, $ignore_html = false ) {
  global $shortcode_tags;

  if ( false === strpos( $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;
  }

  $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 );

  return $content;
}
 

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