Example 1: wp_get_attachment_image class
<?php
echo wp_get_attachment_image( get_the_ID(), array('700', '600'), "", array( "class" => "img-responsive" ) );
?>
Example 2: image upload and get attachment id in wordpress
function cst_image_upload($img){
require_once( ABSPATH . 'wp-admin/includes/image.php' );
$attes_id = array();
$cnt = count($img['name']);
for($i=0;$i<$cnt;$i++)
{
$name = $img['name'][$i];
$type = $img['type'][$i];
$tmp_name = $img['tmp_name'][$i];
$error = $img['error'][$i];
$size = $img['size'][$i] ;
$upload_data = array(
'name' => $name,
'type' => $type,
'tmp_name' => $tmp_name,
'error' => $error,
'size' => $size
);
$uploaded_file = wp_handle_upload($upload_data, array('test_form' => false));
if (isset($uploaded_file['file'])) {
$file_loc = $uploaded_file['file'];
$file_name = basename($upload_data['name']);
$file_type = wp_check_filetype($file_name);
$attachment = array(
'post_mime_type' => $file_type['type'],
'post_title' => preg_replace('/\.[^.]+$/', '', basename($file_name)),
'post_content' => '',
'post_status' => 'inherit'
);
$attach_id = wp_insert_attachment($attachment, $file_loc);
$attach_data = wp_generate_attachment_metadata($attach_id, $file_loc);
wp_update_attachment_metadata($attach_id, $attach_data);
array_push($attes_id,$attach_id);
}
}
return $attes_id;
}
Example 3: wp_get_attachment_image_url
function custom_post_type() {
$labels = array(
'name' => _x( 'Post Types', 'Post Type General Name', 'text_domain' ),
'singular_name' => _x( 'Post Type', 'Post Type Singular Name', 'text_domain' ),
'menu_name' => __( 'Post Types', 'text_domain' ),
'name_admin_bar' => __( 'Post Type', 'text_domain' ),
'archives' => __( 'Item Archives', 'text_domain' ),
'attributes' => __( 'Item Attributes', 'text_domain' ),
'parent_item_colon' => __( 'Parent Item:', 'text_domain' ),
'all_items' => __( 'All Items', 'text_domain' ),
'add_new_item' => __( 'Add New Item', 'text_domain' ),
'add_new' => __( 'Add New', 'text_domain' ),
'new_item' => __( 'New Item', 'text_domain' ),
'edit_item' => __( 'Edit Item', 'text_domain' ),
'update_item' => __( 'Update Item', 'text_domain' ),
'view_item' => __( 'View Item', 'text_domain' ),
'view_items' => __( 'View Items', 'text_domain' ),
'search_items' => __( 'Search Item', 'text_domain' ),
'not_found' => __( 'Not found', 'text_domain' ),
'not_found_in_trash' => __( 'Not found in Trash', 'text_domain' ),
'featured_image' => __( 'Featured Image', 'text_domain' ),
'set_featured_image' => __( 'Set featured image', 'text_domain' ),
'remove_featured_image' => __( 'Remove featured image', 'text_domain' ),
'use_featured_image' => __( 'Use as featured image', 'text_domain' ),
'insert_into_item' => __( 'Insert into item', 'text_domain' ),
'uploaded_to_this_item' => __( 'Uploaded to this item', 'text_domain' ),
'items_list' => __( 'Items list', 'text_domain' ),
'items_list_navigation' => __( 'Items list navigation', 'text_domain' ),
'filter_items_list' => __( 'Filter items list', 'text_domain' ),
);
$args = array(
'label' => __( 'Post Type', 'text_domain' ),
'description' => __( 'Post Type Description', 'text_domain' ),
'labels' => $labels,
'supports' => false,
'taxonomies' => array( 'category', 'post_tag' ),
'hierarchical' => false,
'public' => true,
'show_ui' => true,
'show_in_menu' => true,
'menu_position' => 5,
'show_in_admin_bar' => true,
'show_in_nav_menus' => true,
'can_export' => true,
'has_archive' => true,
'exclude_from_search' => false,
'publicly_queryable' => true,
'capability_type' => 'page',
);
register_post_type( 'post_type', $args );
}
add_action( 'init', 'custom_post_type', 0 );