chdir correto.php

<?php
$banners = "gallery-adm/repository/banners/";
chdir($banners);
$arq_banners = glob("{*.png,*.jpg,*.jpeg,*.bmp,*.gif}", GLOB_BRACE);
foreach($arq_banners as $img_banners)
  echo "<img src=".$banners.$img_banners." />";
$studio = "gallery-adm/repository/studio/";
chdir("../studio");
$arq_studio = glob("{*.png,*.jpg,*.jpeg,*.bmp,*.gif}", GLOB_BRACE);
foreach($arq_studio as $img_studio) {
?> 
<article class="tattoo-section" <?php echo "data-img=".$studio.$img_studio.""; ?> <?php echo "data-tabletimg=".$studio.$img_studio.""; ?> <?php echo "data-phoneimg=".$studio.$img_studio.""; ?> >
<?php } ?>