Can’t change excerpt length and more tag

excerpt_length filter does not work on manually added filter so you use wp_trim_excerpt function, you can develop code same as following to achieve it.

<?php
if( has_excerpt() ){
    the_excerpt();
} else {
    wp_trim_excerpt();
}
?>

excerpt_more does not work on WordPress version 2.8.x and Older for those versions you have to use following filter.

<?php
function new_excerpt_more( $excerpt ) {
return str_replace( '[...]', '...', $excerpt );
}
add_filter( 'wp_trim_excerpt', 'new_excerpt_more' );
?>

Related Posts:

  1. How to filter out shortcode when displaying the_excerpt() in the loop?
  2. new_excerpt_more link not working properly
  3. Setting a default text for excerpts of a particular category
  4. Appending „read more” to the excerpt conditionally
  5. Hide disclaimer from summary excerpts
  6. How to make an If Else on Excerpt Filter
  7. need help with ‘… read more’ excerpt in functions.php
  8. How to add an excerpt and read more link to a page?
  9. function to show youtube videos within excerpt – if condition and apply_filters
  10. Define custom Page Template without its own .php file
  11. Removing default image size list in Media Box
  12. How to restrict actions and filters “properly” by conditions
  13. Check if the user has explicitly set an excerpt
  14. How to override function in functions.php of parent theme?
  15. syntax for remove_filter in parent theme with class
  16. Override parent theme function that is not hooked or in the functions.php file
  17. Stripping shortcode from custom excerpt function
  18. Removing title from page
  19. Hide some items from Screen options in dashboard for products
  20. Exclude filter on front page
  21. Allow latex in wordpress excerpt
  22. Replace Archive Widget Link Text
  23. Exclude Empty Child Categories in Menu
  24. Best way to programatically add “rel” attributes to page and post images
  25. add_filter priority problem
  26. Clean-up script tags
  27. Remove function or filter
  28. Super simple shortcode not working
  29. Using “Read More” link with custom excerpt
  30. Adding multiple taxonomy filters to functions.php
  31. Last updated date function
  32. How to display post content instead of excerpt
  33. How to set default archive image without overriding first attached image? [closed]
  34. Only let plugin add actions to wp_head & wp_footer on single posts
  35. Using Schema with `the_excerpt`
  36. How to put “Read more” link in Custom Excerpt inside p tag?
  37. How to make custom column Admin>Users sortable?
  38. Get Current Post ID in functions php, meta query filter
  39. Output and filter data from a XML url
  40. What did I do wrong in my functions code, that will not change the “Get New Password” text to “Send It”?
  41. Limit length of first excerpt in the loop
  42. How to filter $content in shortcode function
  43. Give “Read More” precedence over excerpt() word count
  44. Filtering out the #more anchor link that gets produced by
  45. Excerpts are not displayed by a shortcode on category pages
  46. Add Element as a Filter to the_content
  47. How can I add a filter for specific categories on functions.php?
  48. How to add custom JavaScript in functions?
  49. How would I go about replacing this function in my child theme located in inc/template-tags.php
  50. Retrieve a value from Yoast SEO to use to set a default twitter card image honoring overrides
  51. Can’t properly set the_title add_filter to show short_URL
  52. Filter an WordPress Function in (general-template.php)
  53. Remove links from the_content when using filters wp_trim_excerpt
  54. Excerpt for pages not showing
  55. Filter nav menu items HTML tags and wrap inner text with span
  56. WordPress Excerpt – How to remove the first link using functions.php
  57. How can I add a class to a nav li depending on URL?
  58. Modify gform_other_choice_value for specific form and specific field in Gravity Forms
  59. login_headertitle is deprecated since version 5.2.0
  60. Set “woocommerce_is_purchasable” to false for specific “$product->is_stock_status”
  61. Filter to wp_list_authors
  62. How to add custom li item to wordpress menu
  63. More tag locked in Hemingway
  64. Add Adsense code between job listings – wp job manager plugin
  65. Problem with images URL after filter applying
  66. remove_action not working, even after changing priority [duplicate]
  67. remove/hide wp-editor
  68. Add a class to post if it has been recently updated
  69. search form leads to 404
  70. Limit number of characters in different excerpts
  71. how to add_filter to non hook function
  72. how can I add filter in specfic field in my website?
  73. How to display an image before title text in menu items
  74. Overwrite text in a complicated filter hook
  75. Filter Post Title without affecting screen-reader-text
  76. Save_post – Warning: Cannot modify header information
  77. custom error message for empty username and password using authenticate filter not working
  78. Add #primary at the end of navlink permalinks on single posts
  79. remove_filter function to unhook twentysixteen parent theme function
  80. only update titles of single posts
  81. OOP Switch statement with array as parameter
  82. How can I automatically delete comments that contain a URL?
  83. How to add class dynamically from templates
  84. how can I change the read more link destinations and direct all to the same page?
  85. ACF Filter return value
  86. Graphic before title – Specific Category
  87. $content is empty while using DOMDocument
  88. Regex works in regexr, but not if I filter content [closed]
  89. Retrieve a custom form field modified by a filter
  90. functions.php filters not applied in AJAX call
  91. getExcerpt: Make ellipsis appear only if character limit is reached
  92. Excerpt length: get 2 paragraphs
  93. Settings in functions.php used by a plugin
  94. Print all inline styles to head
  95. Force resize for all video content
  96. Way of getting queried loop before the query with a filter hook?
  97. Excerpt – First Sentence & Read More
  98. Trying to get this function to show below the content
  99. Warning: call_user_func_array() expects parameter 1 to be a valid callback
  100. How can I modify or filter this variable in an existing class? (Mai Theme)