get_page_by_title() returns a object by default and get_permalink() needs the ID as first parameter. Try:
$mypagename = "My First Page";
$permalink = get_permalink( get_page_by_title( $mypagename )->ID );
Related Posts:
- Using $_GET variables in the URL?
- Why does WordPress Pagination Remove the Spaces from my GET Variable?
- How to make variables in URL look like the permalink structure?
- stop the_permalink printing and save as variable?
- Passing variable as permalink URL
- What is the difference between get_post_permalink and get_permalink?
- WordPress matching URLs with trailing tildes
- Rewrite Rule for Multilingual Website, Like qTranslate?
- How to use relative links on my pages?
- How to filter to output of the get_permalink() function
- Change slug on post creation
- WordPress Permalink changes to question mark (?) in URL
- Is there a user-facing interface to edit an attachment’s permalink?
- Can WordPress realistically handle a site with 500 ‘pages’?
- URL Rewrite + Page + Custom Post Type = Unusual Redirect
- WordPress on a subdirectory of Laravel – WordPress pretty permalinks inner page shows laravel
- Get post title with link
- WooCommerce permalinks [closed]
- Menu Link Redirect Based on Username or User ID
- Performance and styles not working fine after changing permalink structure
- Redirect short-form URL to long-form URL (post_id to post_id + post_name)
- Maintaining two permalink structures
- Enable Minify in W3Total Cache using NGINX [closed]
- Can’t change permalink url after hitting ‘ok’ and ‘update’
- Rewrite user profile URL to be human friendly
- removing index.php IIS 7.5 webconfig
- Sub-category and category in permalink structure
- Permalinks changed with WordPress 4.9
- Permalinks broken regularly
- 404 Page Not Found for Only One Post
- How to 301 all posts
- Call to a member function add_rule() on a non-object
- Link to blog index from template
- How to change Post ID during import
- Debugging permalink issue
- WordPress 404 in development area
- Change blog segment of URL
- Custom Permalink
- why some permalinks adding characters/ruining links
- Multiple taxonomies on same permalink rule [closed]
- How to bulk edit image url in featured image and product description?
- WordPress category base not in post permalink
- What’s actually happening when permalinks for custom post types suddenly stop working
- Redirect a Blogger Page URL to wordpress
- Edit page slug after save, cause 404 by linked pages
- Conditional permalink structure
- Auto setup “permalink” or request notice
- How to add .html to the end of the permalink
- IIS 7 Rewrite with parent categories
- permalinks issue and archives
- get_permalink() always returns empty
- Separate link structure for specific posts (/blog/glossary in stead of just /blog)
- WordPress rewrite_rules_array rule not working properly
- WordPress basic functions show on top in custom shortcode
- Is it possible to install WordPress Multisite on a subdomain with subdirectories?
- Internal linking when on a shared IP
- Return value of get_permalink(0) and get_the_title(0)
- Custom function making troubles in get_permalink for ACF relationship fields
- Change permalink structure for pagination only
- http: not showing in wordpress permalink setting
- Two URLs of one post is available
- How to add specific phrase to end of search url
- Will adding 40,000 301 redirects slow down a site?
- Pagination url for page template
- I Need to use Month , year in my all archives and pages of my wordpress site
- How to add post meta to post permalink with still keeping a good performance?
- Page Navigation is not working with permalink structure
- Page URL not working due to physical directory
- Gutenberg Editor: dynamically edit slug field based on ACF field
- Cannot Set Custom Permalinks for Multisite Post Migration
- Load-balanced site frequently losing permalink settings
- Problems fixing a REST API 404 after Moving my WordPress Directory and updating Permalink Structure
- Redirect old /%category%/%postname%/ to just /%postname%/
- Permalink length
- Redirect page to homepage, keeping URL
- Internal forward link with add_rewrite_rule
- Adding query string to multiple page urls in a WordPress function
- Change permalink structure with post id
- How to allow different authors to use same post slug?
- How to display category and subcategory in wordpress permalink structure?
- Updates all internal links on permalink update
- What permastrusture tags are generated out of the box right after creating custom post types and taxonomies?
- Change permalinks of ‘post’ type (add_rewrite_rule or ?????)
- Generate post title and permalink from custom field and post date
- Permalink Options does not change
- The permalink for the page doesn’t work and page’s defined link throws “Object not found!”
- WordPress search seems to look into permalink (which is bad)
- whats is the perfect configuration to .htaccess for permalinks?
- Define a Permalink Structure by Post and Page
- WordPress 4.0 beta – how to change the link URL in RSS feeds
- Folder Name and Category Name WordPress
- After changing permalink settings, everything works fine except for the two most recent posts
- Installing WordPress in another Install?
- using post meta data as permalink tags [duplicate]
- How to display post permalinks instead of pages?
- .htaccess not working in WordPress
- Incorporate single WordPress page into an existing static website [duplicate]
- How to configure WordPress to be a subdirectory of my main site as mymainsite.com/blog?
- Removing parent page in URL for one page
- Remove index.php from URL