Filter to modify the review form

modify-review-form.php

<?php
/** The defaults below are just for reference to use with the filter:
$defaults = array(
			'fields'                => $fields,
			'comment_field'         => '<p class="comment-form-comment"><label for="comment">' . _x( 'Review', 'noun', 'gravityview-ratings-reviews' ) . '</label> <textarea id="comment" name="comment" cols="45" rows="8" aria-required="true"></textarea></p>',
			// This filter is documented in wp-includes/link-template.php
			'must_log_in'           => '<p class="must-log-in">' . sprintf( __( 'You must be <a href="%s">logged in</a> to post a comment.', 'gravityview-ratings-reviews' ), wp_login_url( $permalink ) ) . '</p>',
			// This filter is documented in wp-includes/link-template.php
			'logged_in_as'          => '<p class="logged-in-as">' . sprintf( __( 'Logged in as <a href="%1$s">%2$s</a>. <a href="%3$s" title="Log out of this account">Log out?</a>', 'gravityview-ratings-reviews' ), get_edit_user_link(), $user_identity, wp_logout_url( $permalink ) ) . '</p>',
			'comment_notes_before'  => '<p class="comment-notes">' . __( 'Your email address will not be published.', 'gravityview-ratings-reviews' ) . ( $req ? $required_text : '' ) . '</p>',
			'comment_notes_after'   => '<p class="form-allowed-tags">' . sprintf( __( 'You may use these <abbr title="HyperText Markup Language">HTML</abbr> tags and attributes: %s', 'gravityview-ratings-reviews' ), ' <code>' . allowed_tags() . '</code>' ) . '</p>',
			'id_form'               => 'commentform',
			'id_submit'             => 'submit',
			'name_submit'           => 'submit',
			'title_reply'           => __( 'Review this entry', 'gravityview-ratings-reviews' ),
			'title_reply_to'        => __( 'Reply to %s', 'gravityview-ratings-reviews' ),
			'cancel_reply_link'     => __( 'Cancel reply', 'gravityview-ratings-reviews' ),
			'label_submit'          => __( 'Post Review', 'gravityview-ratings-reviews' ),
			'format'                => 'xhtml',
			// The message shown to users who try to add two reviews to the same entry.
			'limited_to_one_review' => '<p class="limited-to-one-review">' . sprintf( __( 'You have already reviewed this entry.', 'gravityview-ratings-reviews' ) ) . '</p>',
		);
*/
  
add_filter( 'gv_ratings_reviews_review_form_settings', 'gv_modify_review_form_labels',10,1);
function gv_modify_review_form_labels($defaults){
	$new_defaults = array(
			'title_reply'           => 'You are about to review this entry',
			'label_submit'          => 'Submit your review',
			);

	$defaults = array_replace($defaults, $new_defaults);
	return $defaults;
}