reset an array using unset in phpLearning Curve- Perfect Tutorial for the beginers | Learning Curve- Perfect Tutorial for the beginers

Reset an array having Particular or similar key.Unset an array using pregmatach key search

$myarray['my_id']='sss';
$myarray['datatext_1']='fdsafd';
$myarray['datatext_2']='ggg';
$myarray['datatext_3']='sss';
$myarray['datatexts_3']='sss';
$myarray['user_type']='sss';
foreach ($myarray as $key => $value) {
                    if (preg_match('/datatext_\d/', $key)) {
                   
						unset($myarray[$key]);
                    }
                }
				
				
echo "<pre>";print_r($myarray);echo "<br>";

$myarray['my_id']='sss';

$myarray['datatext_1']='fdsafd';

$myarray['datatext_2']='ggg';

$myarray['datatext_3']='sss';

$myarray['datatexts_3']='sss';

$myarray['user_type']='sss';

foreach ($myarray as $key => $value) {

if (preg_match('/datatext_\d/', $key)) {

unset($myarray[$key]);

}

echo "<pre>";print_r($myarray);echo "<br>";