woocommerce_settings_form_method_tab_(current_tab) filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_settings_form_method_tab_(current_tab)', 'filter_function_name_7955' );
function filter_function_name_7955( $string ){
	// filter...

	return $string;
}

$string

-

Where the hook is called

<form method="<?php echo esc_attr( apply_filters( 'woocommerce_settings_form_method_tab_' . $current_tab, 'post' ) ); ?>" id="mainform" action="" enctype="multipart/form-data">

Where in WP core the hook is used WooCommerce