Fix for

fix.php

<?php
add_action('plugins_loaded', 'fix_insert_php_code_snippet');

function fix_insert_php_code_snippet() {
    add_shortcode('xyz-ips', 'mod_xyz_ips_display_content');
}

function mod_xyz_ips_display_content($xyz_snippet_name) {
    global $wpdb;
    if (is_array($xyz_snippet_name)) {
        $snippet_name = $xyz_snippet_name['snippet'];
        $query        = $wpdb->get_results($wpdb->prepare("SELECT * FROM " . $wpdb->prefix . "xyz_ips_short_code WHERE title=%s", $snippet_name));
        if (count($query) > 0) {
            foreach ($query as $sippetdetails) {
                if ($sippetdetails->status == 1) {
                    if (is_numeric(ini_get('output_buffering'))) {
                        //$tmp = ob_get_contents();
                        //if (strlen($tmp) > 0) ob_clean();
                        ob_start();
                        $content_to_eval = $sippetdetails->content;

                        /***** to handle old codes : start *****/

                        if (get_option('xyz_ips_auto_insert') == 1) {
                            $xyz_ips_content_start = '<?php';
                            $new_line              = "\r\n";
                            $xyz_ips_content_end   = '?>';

                            if (stripos($content_to_eval, '<?php') !== false) $tag_start_position = stripos($content_to_eval, '<?php'); else
                                $tag_start_position = "-1";

                            if (stripos($content_to_eval, '?>') !== false) $tag_end_position = stripos($content_to_eval, '?>'); else
                                $tag_end_position = "-1";

                            if (stripos($content_to_eval, '<?php') === false && stripos($content_to_eval, '?>') === false) {
                                $content_to_eval = $xyz_ips_content_start . $new_line . $content_to_eval;
                            } else if (stripos($content_to_eval, '<?php') !== false) {
                                if ($tag_start_position >= 0 && $tag_end_position >= 0 && $tag_start_position > $tag_end_position) {
                                    $content_to_eval = $xyz_ips_content_start . $new_line . $content_to_eval;
                                }
                            } else if (stripos($content_to_eval, '<?php') === false) {
                                if (stripos($content_to_eval, '?>') !== false) {
                                    $content_to_eval = $xyz_ips_content_start . $new_line . $content_to_eval;
                                }
                            }
                            $content_to_eval = '?>' . $content_to_eval;
                        } /***** to handle old codes : end *****/ else {
                            if (substr(trim($content_to_eval), 0, 5) == '<?php') $content_to_eval = '?>' . $content_to_eval;
                        }

                        eval($content_to_eval);
                        $xyz_em_content = ob_get_contents();
                        ob_clean();

                        //echo $tmp;

                        return $xyz_em_content;
                    } else {
                        eval($sippetdetails->content);
                    }
                } else {
                    return '';
                }
                break;
            }
        } else {
            return '';
        }
    }
}