Answered MODX Ext JS Retrieve Value From PHP File

public $testValue = 1234;
public function outputArray(array $array,$count = false) {
    if ($count === false) { $count = count($array); }
    return '{"success":true,"total":"'.$count.'", "testValue":"'.$this->testValue.'", "results":'.$this->modx->toJSON($array).'}';
}

console.log('Test Value', this.store.reader.jsonData.testValue);

console.log(this.store.reader);

,listeners: {
    render: function() {
        if (this.store.getCount() == 0) {
            this.store.on('load', function() {
                console.log(this.store.reader.jsonData.testValue);
            }, this, {
                single: true
            });
        } else {
            console.log('store already loaded');
 
        }
    }
}

var global = (function () {
    return {
        publicVal: null
    }
})();

Ext.extend(Doodles.panel.Home,MODx.Panel, {
    checkValue: function() {
        MODx.Ajax.request({
            url: Doodles.config.connectorUrl
            , params: {
                action: 'mgr/doodle/getValue'
            }
            , listeners: {
                success: {
                    fn: function (response) {
                        if(response.message == 1234) {
                            this.loadGrid(); // another function you would define to load the grid
                        }
                    }, scope: this
                }
            }
        });
    }
});

<?php
class GetValueProcessor extends modProcessor {
    public $testValue;

    public function process() {
        $this->testValue = 1234;
        return $this->success($this->testValue);
    }
}
return 'GetValueProcessor';

<?php
require_once dirname(__FILE__) . '/model/doodles/doodles.class.php';
class DoodlesIndexManagerController extends modExtraManagerController {
    public $doodles;
    public function initialize() {
        $this->doodles = new Doodles($this->modx);

        $this->addCss($this->doodles->config['cssUrl'].'mgr.css');
        $this->addJavascript($this->doodles->config['jsUrl'].'mgr/doodles.js');
        $this->addHtml('<script type="text/javascript">
        Ext.onReady(function() {
            Doodles.config = '.$this->modx->toJSON($this->doodles->config).';
        });
        </script>');
        return parent::initialize();
    }
    public function getLanguageTopics() {
        return array('doodles:default');
    }
    public function checkPermissions() { return true;}
		
	public function process(array $scriptProperties = array()) {

	}
	public function getPageTitle() { return $this->modx->lexicon('doodles'); }
	public function loadCustomCssJs() {
		$this->addJavascript($this->doodles->config['jsUrl'].'mgr/widgets/doodles.grid.js');
		$this->addJavascript($this->doodles->config['jsUrl'].'mgr/widgets/home.panel.js');
		$this->addLastJavascript($this->doodles->config['jsUrl'].'mgr/sections/index.js');
	}
	public function getTemplateFile() { return $this->doodles->config['templatesPath'].'home.tpl'; }
}