Code Snippets

specify date format by defining in the xml file directly as below.

<column name="created_at" class="Magento\Ui\Component\Listing\Columns\Date" component="Magento_Ui/js/grid/columns/date">
    <settings>
        <filter>dateRange</filter>
        <dataType>date</dataType>
        <label translate="true">Order Date</label>
        <dateFormat>MMMM d, Y</dateFormat><!--  this is the dateformat you can specify -->
    </settings>
</column>

$writer = new \Zend_Log_Writer_Stream(BP . '/var/log/custom.log');
$logger = new \Zend_Log();
$logger->addWriter($writer);
$logger->info('Text Log'); //Text Log
$logger->info('Array Log'.print_r($myArrayVar, true)); // Array Log