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Created Oct 22, 2015
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* Change comment form textarea to use placeholder
* @since 1.0.0
* @param array $args
* @return array
function ea_comment_textarea_placeholder( $args ) {
$args['comment_field'] = str_replace( 'textarea', 'textarea placeholder="comment"', $args['comment_field'] );
return $args;
add_filter( 'comment_form_defaults', 'ea_comment_textarea_placeholder' );
* Comment Form Fields Placeholder
function be_comment_form_fields( $fields ) {
foreach( $fields as &$field ) {
$field = str_replace( 'id="author"', 'id="author" placeholder="name*"', $field );
$field = str_replace( 'id="email"', 'id="email" placeholder="email*"', $field );
$field = str_replace( 'id="url"', 'id="url" placeholder="website"', $field );
return $fields;
add_filter( 'comment_form_default_fields', 'be_comment_form_fields' );
.comment-respond label {
display: none;

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@KostasNi KostasNi commented Oct 22, 2015

Wouldn't be better to add the .screen-reader-text class to the labels instead of display: none for accessibility?

Another use of .screen-reader-text is to hide labels in forms. Search forms are a common place where designers use placeholders and image buttons to convey the purpose of the form. Adding a label that’s available to screen readers make the form usable for screen reader users, without altering the design.
-Hiding text for screen readers with WordPress Core

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