How do I check if a post is password protected?

Related Posts:

1. How to detect single.php (but not single-portfolio.php)?
2. How to protect pages with double authentication: password + email (in custom field)
3. Custom Single Post By Category
4. Using single.php from plugin folder instead of default template folder
5. Custom permalink structure only for default posts
6. Related Posts by Multiple Tags?
7. How can I safely increase the character limit for post passwords?
8. Is it possible to direct users to a certain post based on a password entered on the home page?
9. How do I create a link that will always show the latest post?
10. Hide password protected posts in admin
11. Post X of Y in single.php / sidebar.php
12. HTML code in Custom field
13. How to have different content in the loop and single
14. Single.php Active Category Class
15. How to add shortcode tags in single.php [closed]
16. get_terms parent for current product only
17. custom single.php not working
18. How to display different single post template based on author?
19. How to lock a post or page
20. how load content as pop-up using ajax
21. Disable single post page
22. how to know if the post has pagination () or not
23. Remove arrows from previous and next link
24. “next_posts_link” and “previous_posts_link” display me NOTHING
25. Locked/Unlocked in title
26. How to disable single post view in wp
27. Custom Post Templates
28. Add code just after Post content
29. Pagination on single post page?
30. Restrict post navigation to current sub menu
31. Can’t get the_content of the parent page from its single post?
32. Show all posts in sidebar in single.php
33. How to show single post page as home page
34. Using wp_list_categories like the the_category (showing just current categories of a post)
35. How can I make a post that belongs to a category or have specific tags, display different from the other single posts?
36. Display all posts that were published before full post on single.php
37. How to verify wp user password by sql query in wp? [closed]
38. Add Read More Tag to a post content (Single.php)
39. If in_category not working for multiple single.php pages
40. Single.php – Get Current Parent Category
41. Insert sometext after first h3 in content
42. Thumbnail Image to go in the post aswell
43. Remove password protected posts from default RSS feed
44. Add get_the_tags() to Single Posts section via functions.php
45. Is it possible to customize the post according to post format in single.php?
46. Multiple comment forms on a single page
47. Post type no single page
48. Single Post in Tab/Slider
49. Display password protected posts to logged in users
50. Change the color of the Password Protected Post titles
51. Defined function isn’t showed on page
52. get_previous_post() while accounting for sticky posts
53. wp-link-pages in header and footer of the post
54. Changing wp_link_pages() to “Next Page” and “Previous Page” buttons?
55. Attachment image single page
56. Nest Next and Previous in a href with class that has a background image
57. Making a wordpress page print friendly
58. WordPress single.php different layouts projects / posts
59. Can I style single post that are in multiple catergories?
60. “Home” Page now only displaying the single latest post
61. How to save template data into wp_post table (post_content column)
62. WordPress – When visiting a `single post/ single.php` my category menu item link becomes active
63. How do I change the template specifically for single posts?
64. Show single post child category from a determined parent
65.         out of nowhere
66. WP posts using index.php instead of single.php
67. Single post shows post three times
68. display multiple posts and posts content on a single URL
69. Using WP page password protection as defacto login
70. Pagination for single post
71. Get the category of post
72. Only show related posts when another post has same term
73. List posts of assigned categories in list of all categories on single.php
74. Is possible to do this from function.php
75. Custom Single Post Type not referring to single-post-type.php File
76. Hide Certain Tags on Single Post Page
77. Thumbnail With Next/Prev Links Not Showing Next Post?
78. Add wp-link-pages to post
79. Pagination and Related Posts
80. Single post page from static home not working
81. Get current post’s child page?
82. 1 post, 2 templates
83. Password-protected Posts lead to 404 Error
84. Wrap div-tag around posts in page
85. Insert Shortcode exactly at the end of the content
86. WordPress More tag doesn’t work on Single post
87. No matching template found when using single.php
88. how show post date for specific post?
89. Show Next/Previous without Link
90. Display related posts that match as many similar tags as possible?
91. Get WordPress post content by post id
92. Get page ID of page that is set as the posts page
93. Get Posts Under Custom Taxonomy
94. How to limit the number of posts that WP_Query gets?
95. Stop WordPress Wrapping Images In A “P” Tag
96. When is the ‘post_content_filtered’ column in database cleared by WordPress?
97. Turn a URL into an Attachment / Post ID
98. GET the excerpt by ID
99. Stop WordPress automatically adding tags to post content
100. Determine if page is the Posts Page