Modify the Submit Button Text

Unless otherwise indicated, the code snippets you see below should be placed into your theme’s functions.php file.

Here is the code to modify the submit button text on your site:

//* Do NOT include the opening php tag shown above. Copy the code shown below.
//* Customize the submit button text in comments
add_filter( 'comment_form_defaults', 'sp_comment_submit_button' );
function sp_comment_submit_button( $defaults ) {
        $defaults['label_submit'] = __( 'Submit', 'custom' );
        return $defaults;
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