Css dynamic by Redux framework

// css dynamic
function myHead(){
	 global $opt_name;
        ob_start();
        ?>
         #textColor{color:<?php echo $opt_name['text_color'];?>}
         #textColors{color:<?php echo $opt_name['text_colors'];?>}
        <?php
        file_put_contents( get_template_directory().'/dynamic-css/style.css',ob_get_clean());
}
add_action('wp_head','myHead');