Using WordPress ‘edit_term_{$field}’ PHP filter

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The edit_term_{$field} WordPress PHP filter allows you to modify a term field before it is sanitized.

Usage

add_filter( 'edit_term_{field}', 'your_custom_function', 10, 3 );

function your_custom_function( $value, $term_id, $taxonomy ) {
    // your custom code here
    return $value;
}

Parameters

  • $value (mixed) – Value of the term field.
  • $term_id (int) – Term ID.
  • $taxonomy (string) – Taxonomy slug.

More information

See WordPress Developer Resources: edit_term_{$field}

Examples

Change term name

Modify the term name before it is sanitized.

add_filter( 'edit_term_name', 'change_term_name', 10, 3 );

function change_term_name( $value, $term_id, $taxonomy ) {
    // Add " - Modified" to the term name
    $value .= ' - Modified';
    return $value;
}

Capitalize term description

Capitalize the first letter of the term description.

add_filter( 'edit_term_description', 'capitalize_term_description', 10, 3 );

function capitalize_term_description( $value, $term_id, $taxonomy ) {
    // Capitalize first letter of the term description
    $value = ucfirst( $value );
    return $value;
}

Sanitize term slug

Sanitize term slug by replacing spaces with dashes.

add_filter( 'edit_term_slug', 'sanitize_term_slug', 10, 3 );

function sanitize_term_slug( $value, $term_id, $taxonomy ) {
    // Replace spaces with dashes
    $value = str_replace( ' ', '-', $value );
    return $value;
}

Append prefix to term name

Add a prefix to the term name.

add_filter( 'edit_term_name', 'prefix_term_name', 10, 3 );

function prefix_term_name( $value, $term_id, $taxonomy ) {
    // Add "Prefix - " to the term name
    $value = 'Prefix - ' . $value;
    return $value;
}

Remove HTML tags from term description

Strip HTML tags from the term description.

add_filter( 'edit_term_description', 'remove_html_tags_term_description', 10, 3 );

function remove_html_tags_term_description( $value, $term_id, $taxonomy ) {
    // Remove HTML tags from the term description
    $value = strip_tags( $value );
    return $value;
}