Check if current page is using blocks (Gutenberg) or is legacy

I know it’s been awhile, but yes. You can check if a post uses blocks, check out has_blocks() : https://developer.wordpress.org/reference/functions/has_blocks/

I’m using it when filtering content, to see if I need to parse blocks or not.

Related Posts:

  1. Add To Gutenberg Sidebar
  2. How to detect the usage of Gutenberg
  3. Possible to use @wordpress/create-block with multiple blocks?
  4. What is the advantage of ‘register_block_type’ (the PHP function) when creating custom blocks?
  5. The Block Editor: Disable “Color settings” in the specific block
  6. Serialize custom block with InnerBlock
  7. What replaces wpColorPicker in Gutenberg?
  8. Gutenberg Range Control default from meta value
  9. Find all the places where a block type is used
  10. Why is the new Gutenberg editor so narrow, and how to make it wider?
  11. WP Blocks – Gutenberg – not rendering $content
  12. Why does the custom HTML block not preserve the HTML characters?
  13. Can’t get dynamic Gutenberg block to render on the frontend
  14. Gutenberg change/remove “Write your story” placeholder in custom blocks
  15. How do I listen for a change in an innerBlock child?
  16. How to enable Gutenberg Block Editor on taxonomy term pages?
  17. What’s the absolute minimum code that I need to create a dynamic block?
  18. How to make 2/3 width column in Gutenberg
  19. Change default colors in paragraph block settings
  20. Gutenberg Reusable Block of WordPress
  21. Add custom attributes to link in Gutenberg
  22. How do I add a Gutenberg editor to a custom options page
  23. Custom Gutenberg Block: Excluding an allowed block from InnerBlock’s templateLock={‘all’}
  24. Determine if block has already been registered
  25. InnerBlocks breaks Flexbox and CSS Grid styles
  26. Is there a way to set the gutenberg color palette outside the theme?
  27. Gutenberg get withState variable in save function
  28. Gutenberg block JavaScript localisation on Polyglots does not work
  29. how define elements type in attributes type array of gutenberg blocks
  30. Convert GMT time to local time in Gutenberg Block Editor
  31. Restrict heading level in Gutenberg block `core/heading`
  32. How do I disable or hide the Layout block setting in the Group block
  33. Cleaning up after block dismount
  34. How to add a class to the link of the default Gutenberg Button block?
  35. How to identify what templates are being loaded in a block-based theme [closed]
  36. Filter root element of tag cloud block
  37. How `window.wp.oldEditor` is being set in the editor?
  38. How to use Gutenberg blocks in widgets?
  39. Don’t expand “Most Used” accordion item when adding new block
  40. Is it possible (safe) to create custom blocks using ES Next format?
  41. How do i get the link to a block?
  42. How to prevent Block Editor from adding id to block markup in save function?
  43. Dequeue Gutenburg Block Library CSS (‘wp-block-library’) in Admin
  44. How do I make sure the gutenberg block CSS is not disrupted by generic styles?
  45. Custom block Block Validation failure w/ deprecation declared
  46. Working with external library in gutenberg block
  47. Download Image from URL and Create a new Folder in wp-contents and save them there
  48. Using full site editing, can I edit just one specific post / page to be unique?
  49. Detect selected block pattern from a specific Pattern category
  50. How to add a message when post category is empty (the category have no published posts)?
  51. Add javascript file to a block pattern
  52. Block editor not recognizing markdown
  53. Can’t add front end script file using block.json for a custom block
  54. How to create Gutenberg patterns and patterns categories based on CPT posts and CPT terms?
  55. Gutenberg Block: Query for posts with blocks and sort by attributes
  56. How to Disable “Block Recovery” for HTML Blocks in Gutenberg
  57. Block error: post_taxs_obj is not a valid property of Object
  58. How to get the Gutenberg image block to show new Media Library listing
  59. useSelect in event callback – not retrieving value on time
  60. How to Batch Convert Gutenberg post to Classic post?
  61. How to create pre-designed page layouts for Gutenberg?
  62. Can anyone explain why setting a block attributes source to a data-attribute doesn’t work?
  63. How to: Provide component with innerBlocks to WordPress Gutenberg’s save function?
  64. How can I display instagram block with parse_block?
  65. Do not wrap custom block in an additional DIV but instead use only the JSX I provide
  66. Line break in Gutenberg post title?
  67. Basic Block Usage Help on WordPress
  68. Can’t extend my custom gutenberg block
  69. Is there an easy way to remove the data-preserver-spaces span from blocks?
  70. How to Stop Gutenberg From Adding Classic Block
  71. How to increase width of code block in WordPress blog?
  72. Video, embed, html block usage out of the_content
  73. applyformat in gutenberg doesnt work and no errors
  74. Why does Gutenberg adds 4 around blocks? And how to change this?
  75. admin_notices not shown
  76. Have parent block’s isSelected be true if an innerblock is selected?
  77. How can I add the option to format to list in RichTextToolbarButton?
  78. Layout Settings in the new Gutenberg editor
  79. How to get blocks with same heigh in columns?
  80. Gutenberg: Issue trying to commit locally
  81. How to display dynamic block editor on front-end?
  82. Enable varying text for Phone, Tablet and Desktop
  83. Debouncing Input value with block attributes
  84. Using the block theme in production
  85. When using the MediaPlaceholder component, will skipping blobUrl handling break something?
  86. Pass component name in onChange [closed]
  87. Add another option to default link control settings panel?
  88. With full-site-editing menus, how do I create a non-linking top-level menu item with linking sub-pages
  89. How can I render a built-in Gutenberg block with InnerBlocks outside of the block editor?
  90. How do I add filters in Twenty-Twenty-Three without a functions.php?
  91. Different style options for the same block depending where it is used
  92. How to extract ‘intro’ block from page content, but later strip from page main content
  93. Add a new option to Social Link block
  94. Editing Inline fonts/typeface using the block editor
  95. What is the proper way of using React Hooks in Gutenberg on frontend?
  96. How to add Gutenberg editor on frontend page?
  97. WordPress gutenberg block serverside rendering html elements not showing up
  98. Gutenberg: change block Components Popover properties
  99. Unable to register a block using block.json in Block Editor
  100. $attributes not defined in block.json PHP template for ACF blocks