How to use zend_debug:dump in Magento2

You can also import Zend_Debug class at the top of your class file:

use Zend_Debug; 

Then, your code will work as normal:

Zend_Debug($yourVar); 

OR, you can directly instantiate the object of the class. For this, you don't need to import the class but have to use "backslash" infront of the Zend_Debug class name.

\Zend_Debug($yourVar); 

Reference: PHP Documentation on Using namespaces: Aliasing/Importing

Zend_Debug gone from 2.3

https://devdocs.magento.com/guides/v2.3/release-notes/backward-incompatible-changes/

Affected modules:

• Zend_Debug

Action: Affected modules and classes were removed.

Reason: They are no longer used in Magento or Marketplace extensions, are expensive and time-intensive to maintain, and can cause potential security risks if not maintained properly.

In Magento 2.3+

To use the \Zend_Debug::dump($someVar) method :

1. Create a folder app/code/Zend;
2. Create a file app/code/Zend/Debug.php
3. Copy in Debug.php :

<?php /** * Zend Framework * * LICENSE * * This source file is subject to the new BSD license that is bundled * with this package in the file LICENSE.txt. * It is also available through the world-wide-web at this URL: * http://framework.zend.com/license/new-bsd * If you did not receive a copy of the license and are unable to * obtain it through the world-wide-web, please send an email * to [email protected] so we can send you a copy immediately. * * @category Zend * @package Zend_Debug * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License * @version $Id$ */ /** * Concrete class for generating debug dumps related to the output source. * * @category Zend * @package Zend_Debug * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License */ class Zend_Debug { /** * @var string */ protected static $_sapi = null; /** * Get the current value of the debug output environment. * This defaults to the value of PHP_SAPI. * * @return string; */ public static function getSapi() { if (self::$_sapi === null) { self::$_sapi = PHP_SAPI; } return self::$_sapi; } /** * Set the debug ouput environment. * Setting a value of null causes Zend_Debug to use PHP_SAPI. * * @param string $sapi * @return void; */ public static function setSapi($sapi) { self::$_sapi = $sapi; } /** * Debug helper function. This is a wrapper for var_dump() that adds * the <pre /> tags, cleans up newlines and indents, and runs * htmlentities() before output. * * @param mixed $var The variable to dump. * @param string $label OPTIONAL Label to prepend to output. * @param bool $echo OPTIONAL Echo output if true. * @return string */ public static function dump($var, $label=null, $echo=true) { // format the label $label = ($label===null) ? '' : rtrim($label) . ' '; // var_dump the variable into a buffer and keep the output ob_start(); var_dump($var); $output = ob_get_clean(); // neaten the newlines and indents $output = preg_replace("/\]\=\>\n(\s+)/m", "] => ", $output); if (self::getSapi() == 'cli') { $output = PHP_EOL . $label . PHP_EOL . $output . PHP_EOL; } else { if(!extension_loaded('xdebug')) { $flags = ENT_QUOTES; // PHP 5.4.0+ if (defined('ENT_SUBSTITUTE')) { $flags = ENT_QUOTES | ENT_SUBSTITUTE; } $output = htmlspecialchars($output, $flags); } $output = '<pre>' . $label . $output . '</pre>'; } if ($echo) { echo($output); } return $output; } }