How can I get_post_meta() in the most efficient way?

You can use get_post_custom() which will return an array of all post meta in one single call to the database, that should save a few calls.

And as for including the file over and over you could use get_template_part() to include a file once which will hold the entire loop (a good example can be found in the default twenty ten or eleven theme).

Related Posts:

  1. Can the Next/Prev Post links be ordered by menu order or by a meta key?
  2. Advanced search form with filters for custom taxonomies and custom fields
  3. Meta query with boolean true/false value
  4. Custom field values deleted when trashing custom post type
  5. How to get all custom fields of any post type
  6. Custom Post type – how to get checkbox to update meta field to null
  7. How do I Paginate Search Results for Custom Post Types?
  8. How do I remove all the metaboxes for a custom post type?
  9. Custom Queries: Joining On Meta Values From Two Custom Post Types
  10. Gutenberg how to make attribute to save to meta
  11. How to programmatically create a connection with [Plugin: Posts 2 Posts] on cpt publish?
  12. Grossly inefficient wordpress loops!
  13. How Do I Use WP_Query to Run This Database Query as Search Result?
  14. WordPress Admin Panel search posts with custom post meta values along with title
  15. Rest Api v2 orderby meta_key in custom post type
  16. bulk Update post_meta with default values
  17. Custom post type category not displaying in custom post type
  18. How to make custom post meta wp_editor translatable?
  19. How to add multiple featured image in meta box in post editor?
  20. update_post_meta() whenever custom post type is updated
  21. How to best delete orphan wp_postmeta
  22. need advice on how to do a lists using custom post types – taxonomy vs postmeta
  23. Custom Post Status Transition Issues With Get Post Meta
  24. List all images from a single post meta value
  25. orderby in custom WP Query does not work
  26. Show the same Article Available in Other Categories
  27. how to delete all users and posts based on ‘user_meta’?
  28. Meta Key Value in current-user-only loop
  29. How to set YouTube video as featured image?
  30. Custom Post Types. Are there any disadvantages/advantages in using a plugin to develop them?
  31. How to implement a Google map store locator
  32. Widget: Custom Post Type Post Listing Dropdown on Admin Side
  33. Update Post Meta for a logged in user
  34. How to duplicate entire custom post type
  35. Two Custom Post Types Many to Many Relationship
  36. get_post_meta not working on publishing
  37. get_post_meta returning no value in custom post type alert email
  38. WordPress request fiter order by related post’s post_title
  39. Update database from Quick Edit according to Checkbox state of Custom Post Type
  40. Getting thumbnails of a custom posts featured images in a page-templates metabox
  41. Remove Post Custom Meta Box
  42. Show future events based on custom field AND order by date
  43. If Post Meta Equals Current Title Conditional Advanced Custom Fields
  44. create custom meta box with default value
  45. Issue on Working with Metabox – Checkbox to enable Sale Items
  46. delete_post_meta() for whole CPT / multiple posts?
  47. How to move a post to different post type with all meta data?
  48. Why do I have to press the “Update” button twice to save my meta box values?
  49. how to show records that don’t have custom meta value
  50. WP API Response does not show my registered metadata
  51. How to detect that the save_post hook is calling the callback associated to the current edit post page only
  52. Problem with adding custom post type meta to header by plugin
  53. How to call a post’s metadata in shortcode.php?
  54. Echo custom post meta from options array
  55. Value of post meta dropdown is not showing in WordPress
  56. Get all metadata for a given custom post type
  57. WP_Meta_Query object with conditionals
  58. Trying to write shortcode with get_post_meta but isn’t working
  59. Advanced custom field – posted fields from custom post type
  60. delete duplicate meta_value with same post_id
  61. Search CPT Title AND Meta
  62. updating one custom meta field only
  63. Add a class to post_class if more than one post shares same meta_value_num
  64. Function to return values from metabox
  65. Add a meta field to the list of results for a custom post type
  66. Custom fields for post or terms which don’t update on post update
  67. Should I use a custom taxonomy or custom post type for grouping a list of panels associated with a group of tests?
  68. Add a form in every post and save data in post meta
  69. How to use multiple Meta Field from CPT as Post permalink
  70. Unable to gather Image URL from Custom Post Type’s; Custom Meta Field
  71. How can I add a meta[] to my custom post type and search by term with the Rest API?
  72. Show posts from WP Custom Post Type selected from a field in a metabox
  73. Creating an archive page or simple template to list all values of a custom field of specific post type listing
  74. Peepso: Add extra data field (custom post meta) to postbox
  75. Custom meta fields not showing up in WP_Response Object via custom endpoint
  76. Change picture attachment meta of all occurrences of a picture
  77. Unknown Post Meta Records
  78. Get Previous Post based on Custom Field Name, for Custom Post Type
  79. Get meta values from parent post and save in child post
  80. Saving custom post types post_meta over REST-API fails
  81. How to Disable option of meta field if that option is selected for any other post in custom post type?
  82. How to get post detail based on URL of the post
  83. Custom post type meta fields missing on save_post_type
  84. Linking posts together with Advanced Custom Fields “both ways”
  85. Stripe multiple transactions
  86. How to get Current week and current date record wp query
  87. Edit is changing my custom’s post type parent id
  88. Complex strcuture as CPT or taxonomy for use in woocommerce product variations [closed]
  89. How to add post reference field to a plugin?
  90. WordPress custom post type
  91. Edit post meta direct from post.php?
  92. Custom Post Type meta oembed html output resulting in WSoD
  93. Timetable of Custom Meta Data using Custom Post Type and Custom Taxonomy
  94. Change the contents of a dropdown through the admin panel?
  95. fetch meta fields inside a widget
  96. Custom post type – update_meta not working
  97. Use a Variable in update_post_meta as the $meta_key
  98. Post Meta for Custom Post Types
  99. getEntityRecords/useEntityRecords: How to use CPT metadata?
  100. CPT meta values intermittently return empty