Using WordPress ‘document_title’ PHP filter

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The document_title WordPress PHP filter allows you to modify the document title.

Usage

add_filter( 'document_title', 'custom_document_title' );

function custom_document_title( $title ) {
    // your custom code here
    return $title;
}

Parameters

  • $title (string) – The document title to be filtered.

More information

See WordPress Developer Resources: document_title

Examples

Add a custom prefix to the document title

Add a custom prefix to the document title for branding purposes.

add_filter( 'document_title', 'custom_prefix_document_title' );

function custom_prefix_document_title( $title ) {
    $prefix = 'MyBrand: ';
    return $prefix . $title;
}

Add the current date to the document title

Display the current date at the beginning of the document title.

add_filter( 'document_title', 'date_prefix_document_title' );

function date_prefix_document_title( $title ) {
    $date = date('F j, Y');
    return $date . ' - ' . $title;
}

Make the document title all uppercase

Transform the document title to uppercase.

add_filter( 'document_title', 'uppercase_document_title' );

function uppercase_document_title( $title ) {
    return strtoupper( $title );
}

Add a custom suffix to the document title

Add a custom suffix to the document title for additional context.

add_filter( 'document_title', 'custom_suffix_document_title' );

function custom_suffix_document_title( $title ) {
    $suffix = ' - Official Site';
    return $title . $suffix;
}

Remove specific words from the document title

Remove specific words from the document title for better SEO.

add_filter( 'document_title', 'remove_words_document_title' );

function remove_words_document_title( $title ) {
    $remove_words = array( 'example', 'test' );
    $title_array = explode( ' ', $title );
    $filtered_title_array = array_diff( $title_array, $remove_words );
    return implode( ' ', $filtered_title_array );
}