[php] How to display Woocommerce Category image?

I use this code in PHP:

$idcat = 147;
$thumbnail_id = get_woocommerce_term_meta( $idcat, 'thumbnail_id', true );
$image = wp_get_attachment_url( $thumbnail_id );
echo '<img src="'.$image.'" alt="" width="762" height="365" />';

Where 147 is the current ID manually set, but i need to current id in other categories

Any suggest?

This solution with few code. I think is better.

<?php echo wp_get_attachment_image( get_term_meta( get_queried_object_id(), 'thumbnail_id', 1 ), 'thumbnail' ); ?>

To prevent full size category images slowing page down, you can use smaller images with wp_get_attachment_image_src():

<?php 

$thumbnail_id = get_woocommerce_term_meta( $term->term_id, 'thumbnail_id', true );

// get the medium-sized image url
$image = wp_get_attachment_image_src( $thumbnail_id, 'medium' );

// Output in img tag
echo '<img src="' . $image[0] . '" alt="" />'; 

// Or as a background for a div
echo '<div class="image" style="background-image: url("' . $image[0] .'")"></div>';

?>

EDIT: Fixed variable name and missing quote

From the WooCommerce page:

// WooCommerce – display category image on category archive

add_action( 'woocommerce_archive_description', 'woocommerce_category_image', 2 );
function woocommerce_category_image() {
    if ( is_product_category() ){
      global $wp_query;
      $cat = $wp_query->get_queried_object();
      $thumbnail_id = get_woocommerce_term_meta( $cat->term_id, 'thumbnail_id', true );
      $image = wp_get_attachment_url( $thumbnail_id );
      if ( $image ) {
          echo '<img src="' . $image . '" alt="" />';
      }
  }
}

Use this code this may help you.i have passed the cat id 17.pass woocommerce cat id and thats it

   <?php
      global $woocommerce;
      global $wp_query;
      $cat_id=17;
      $table_name = $wpdb->prefix . "woocommerce_termmeta";
      $query="SELECT meta_value FROM {$table_name} WHERE `meta_key`='thumbnail_id' and woocommerce_term_id ={$cat_id} LIMIT 0 , 30";
      $result =  $wpdb->get_results($query);

      foreach($result as $result1){
          $img_id= $result1->meta_value;
      }     

      echo '<img src="'.wp_get_attachment_url( $img_id ).'" alt="category image">';
   ?>

get_woocommerce_term_meta is depricated since Woo 3.6.0.

so change

$thumbnail_id = get_woocommerce_term_meta($value->term_id, 'thumbnail_id', true );

into: ($value->term_id should be woo category id)

get_term_meta($value->term_id, 'thumbnail_id', true)

see docs for details: https://docs.woocommerce.com/wc-apidocs/function-get_woocommerce_term_meta.html

You may also used foreach loop for display category image and etc from parent category given by parent id.

for example, i am giving 74 id of parent category, then i will display the image from child category and its slug also.

**<?php
$catTerms = get_terms('product_cat', array('hide_empty' => 0, 'orderby' => 'ASC', 'child_of'=>'74'));
foreach($catTerms as $catTerm) : ?>
<?php $thumbnail_id = get_woocommerce_term_meta( $catTerm->term_id, 'thumbnail_id', true ); 

// get the image URL
$image = wp_get_attachment_url( $thumbnail_id );  ?>
<li><img src="<?php echo $image; ?>" width="152" height="245"/><span><?php echo $catTerm->name; ?></span></li>
<?php endforeach; ?>** 

Add code in /wp-content/plugins/woocommerce/templates/ loop path

    <?php
        if ( is_product_category() ){

            global $wp_query;
            $cat = $wp_query->get_queried_object();    
            $thumbnail_id = get_woocommerce_term_meta( $cat->term_id, 'thumbnail_id', true ); 
            $image = wp_get_attachment_url( $thumbnail_id ); 
            echo "<img src='{$image}' alt='' />";
        }
    ?>