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Description

Displays the robots meta tag as necessary.

Gathers robots directives to include for the current context, using the wp_robotswp_robots filter. The directives are then sanitized, and the robots meta tag is output if there is at least one relevant directive.

Usage

wp_robots();

Parameters

Returns

void

Source

File name: wordpress/wp-includes/robots-template.php
Lines:

function wp_robots() {
  
/**
 * Filters the directives to be included in the 'robots' meta tag.
 *
 * The meta tag will only be included as necessary.
 *
 * @since 5.7.0
 *
 * @param array $robots Associative array of directives. Every key must be the name of the directive, and the
 *                      corresponding value must either be a string to provide as value for the directive or a
 *                      boolean `true` if it is a boolean directive, i.e. without a value.
 */
  $robots = apply_filters( 'wp_robots', array() );

  $robots_strings = array();
  foreach ( $robots as $directive => $value ) {
    if ( is_string( $value ) ) {
      // If a string value, include it as value for the directive.
      $robots_strings[] = "{$directive}:{$value}";
    } elseif ( $value ) {
      // Otherwise, include the directive if it is truthy.
      $robots_strings[] = $directive;
    }
  }

  if ( empty( $robots_strings ) ) {
    return;
  }

  echo "<meta name='robots' content='" . esc_attr( implode( ', ', $robots_strings ) ) . "' />\n";
}
 

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