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wp_robots › WordPress Function
Since5.7.0
已弃用n/a
› wp_robots ( 没有参数 )
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Displays the robots meta tag as necessary.
Gathers robots directives to include for the current context, using the {@see 'wp_robots'} filter. The directives are then sanitized, and the robots meta tag is output if there is at least one relevant directive.源码
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"; }