The comment_form_field_comment WordPress PHP filter modifies the content of the comment textarea field for display.
Usage
add_filter('comment_form_field_comment', 'your_custom_function');
function your_custom_function($args_comment_field) {
// your custom code here
return $args_comment_field;
}
Parameters
$args_comment_field(string) – The content of the comment textarea field.
More information
See WordPress Developer Resources: comment_form_field_comment
Examples
Change the placeholder text
Update the placeholder text for the comment textarea field.
add_filter('comment_form_field_comment', 'change_placeholder_text');
function change_placeholder_text($args_comment_field) {
$args_comment_field = str_replace('Leave a Reply', 'Share your thoughts', $args_comment_field);
return $args_comment_field;
}
Add a custom class to the textarea
Add a custom CSS class to the comment textarea field.
add_filter('comment_form_field_comment', 'add_custom_class');
function add_custom_class($args_comment_field) {
$args_comment_field = str_replace('<textarea', '<textarea class="custom-class"', $args_comment_field);
return $args_comment_field;
}