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Don't replace “|” with Empty String (“”) when generating slugs from title

What's the difference between hooks, filters and actions?Regenerate Slugs From Title of PostsHow do I replace title with my plugin?Empty string supplied as input when parsing contentReplace a word with a word in the URL stringWhy would apply_filters return a non-empty string, when the value returned is empty?Replace a 'Title' tag with a Custom FieldHow to auto update post title and slug with category name when post status is updatedString replace Wordpress Site Title'the_content' Filter delivers empty string with lengh (608)Remove and replace the “Category: from the_archive_title with custom text

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

3

1

I work for an architecture company and our project names mostly go like this: house|something, bridge|somewhere, building|whatever.

Now, when I want to add a new project named like that, WordPress automatically converts it to housesomething, bridgesomewhere and puts that as the slug. I'd much prefer to keep some kind of separator, e.g. house-something, bridge-somewhere instead.

So, how to make WordPress convert | to - and not Empty String ("")? I'm obviously tired of doing that manually all the time.

It seems to me that it's very simple to do. It takes just a simple search and replace kind of thing if one knows where to look (in the WP core or wherever), but I haven't the slightest idea where to look, or what code to execute.

filters slug title

share|improve this question

edited May 17 at 12:38

cjbj

11k103067

asked May 16 at 16:38

Marg9Marg9

203

add a comment | 

3

1

I work for an architecture company and our project names mostly go like this: house|something, bridge|somewhere, building|whatever.

Now, when I want to add a new project named like that, WordPress automatically converts it to housesomething, bridgesomewhere and puts that as the slug. I'd much prefer to keep some kind of separator, e.g. house-something, bridge-somewhere instead.

So, how to make WordPress convert | to - and not Empty String ("")? I'm obviously tired of doing that manually all the time.

It seems to me that it's very simple to do. It takes just a simple search and replace kind of thing if one knows where to look (in the WP core or wherever), but I haven't the slightest idea where to look, or what code to execute.

filters slug title

share|improve this question

edited May 17 at 12:38

cjbj

11k103067

asked May 16 at 16:38

Marg9Marg9

203

add a comment | 

I work for an architecture company and our project names mostly go like this: house|something, bridge|somewhere, building|whatever.

Now, when I want to add a new project named like that, WordPress automatically converts it to housesomething, bridgesomewhere and puts that as the slug. I'd much prefer to keep some kind of separator, e.g. house-something, bridge-somewhere instead.

So, how to make WordPress convert | to - and not Empty String ("")? I'm obviously tired of doing that manually all the time.

It seems to me that it's very simple to do. It takes just a simple search and replace kind of thing if one knows where to look (in the WP core or wherever), but I haven't the slightest idea where to look, or what code to execute.

filters slug title

share|improve this question

edited May 17 at 12:38

cjbj

11k103067

asked May 16 at 16:38

Marg9Marg9

203

share|improve this question

edited May 17 at 12:38

cjbj

11k103067

asked May 16 at 16:38

Marg9Marg9

203

share|improve this question

edited May 17 at 12:38

cjbj

11k103067

asked May 16 at 16:38

Marg9Marg9

203

edited May 17 at 12:38

cjbj

11k103067

edited May 17 at 12:38

cjbj

11k103067

asked May 16 at 16:38

Marg9Marg9

203

asked May 16 at 16:38

Marg9Marg9

203

2 Answers
2

active

oldest

votes

7

When WordPress inserts a post, it runs the title through a filter called sanitize_title to get the slug. By default there is a function called santize_title_with_dashes attached to this filter with priority 10. This function simply strips out the |. If it is surrounded by spaces those spaces will be converted to hyphens.

So your task is to run a filter on the same hook before (say, priority 9) the default one and replace the | with - before it gets stripped away. Like this:

add_filter( 'sanitize_title', function ( $title ) 
 return str_replace( ', 9 );

share|improve this answer

edited May 25 at 7:42

shea

4,66232752

answered May 16 at 17:08

cjbjcjbj

11k103067

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Thank you very much for your suggestion. It indeed is correct, however there was one small mistake which I fixed and edited your post to make it right. (str_replace() doesn't change the subject string, it's output needs to be returned.) Up to now I haven't really looked too much into the WP Core, but I've gone through the manual for the mentioned functions and can say this practical example elucidated a lot for me. Now I actually understand how this solution works. Thanks again and bye :)
  
  – Marg9
  May 17 at 11:30
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Glad to help. Thank you for correcting the error.
  
  – cjbj
  May 17 at 12:04
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Understanding actions and filters is probably the first thing to dive into when trying to understand core. I wrote a small tutorial for that: wordpress.stackexchange.com/questions/265952/…
  
  – cjbj
  May 17 at 12:26
  

  
  
  
  

add a comment | 

1

If you put spaces in between the words and the separator | the permalink will automatically include dashes between the words. For instance try this as your post title:

house | something, bridge | somewhere

That results in the slug:

house-something-bridge-somewhere

share|improve this answer

answered May 16 at 16:56

MichelleMichelle

2,37131929

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for your post but this isn't really the solution as it requires that I change the titles, which is simply not how the company names it's projects, i.e. there shouldn't be any spaces.
  
  – Marg9
  May 17 at 11:36
  

  
  
  
  

add a comment | 

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7

When WordPress inserts a post, it runs the title through a filter called sanitize_title to get the slug. By default there is a function called santize_title_with_dashes attached to this filter with priority 10. This function simply strips out the |. If it is surrounded by spaces those spaces will be converted to hyphens.

So your task is to run a filter on the same hook before (say, priority 9) the default one and replace the | with - before it gets stripped away. Like this:

add_filter( 'sanitize_title', function ( $title ) 
 return str_replace( ', 9 );

share|improve this answer

edited May 25 at 7:42

shea

4,66232752

answered May 16 at 17:08

cjbjcjbj

11k103067

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Thank you very much for your suggestion. It indeed is correct, however there was one small mistake which I fixed and edited your post to make it right. (str_replace() doesn't change the subject string, it's output needs to be returned.) Up to now I haven't really looked too much into the WP Core, but I've gone through the manual for the mentioned functions and can say this practical example elucidated a lot for me. Now I actually understand how this solution works. Thanks again and bye :)
  
  – Marg9
  May 17 at 11:30
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Glad to help. Thank you for correcting the error.
  
  – cjbj
  May 17 at 12:04
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Understanding actions and filters is probably the first thing to dive into when trying to understand core. I wrote a small tutorial for that: wordpress.stackexchange.com/questions/265952/…
  
  – cjbj
  May 17 at 12:26
  

  
  
  
  

add a comment | 

7

When WordPress inserts a post, it runs the title through a filter called sanitize_title to get the slug. By default there is a function called santize_title_with_dashes attached to this filter with priority 10. This function simply strips out the |. If it is surrounded by spaces those spaces will be converted to hyphens.

So your task is to run a filter on the same hook before (say, priority 9) the default one and replace the | with - before it gets stripped away. Like this:

add_filter( 'sanitize_title', function ( $title ) 
 return str_replace( ', 9 );

share|improve this answer

edited May 25 at 7:42

shea

4,66232752

answered May 16 at 17:08

cjbjcjbj

11k103067

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Thank you very much for your suggestion. It indeed is correct, however there was one small mistake which I fixed and edited your post to make it right. (str_replace() doesn't change the subject string, it's output needs to be returned.) Up to now I haven't really looked too much into the WP Core, but I've gone through the manual for the mentioned functions and can say this practical example elucidated a lot for me. Now I actually understand how this solution works. Thanks again and bye :)
  
  – Marg9
  May 17 at 11:30
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Glad to help. Thank you for correcting the error.
  
  – cjbj
  May 17 at 12:04
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Understanding actions and filters is probably the first thing to dive into when trying to understand core. I wrote a small tutorial for that: wordpress.stackexchange.com/questions/265952/…
  
  – cjbj
  May 17 at 12:26
  

  
  
  
  

add a comment | 

When WordPress inserts a post, it runs the title through a filter called sanitize_title to get the slug. By default there is a function called santize_title_with_dashes attached to this filter with priority 10. This function simply strips out the |. If it is surrounded by spaces those spaces will be converted to hyphens.

So your task is to run a filter on the same hook before (say, priority 9) the default one and replace the | with - before it gets stripped away. Like this:

add_filter( 'sanitize_title', function ( $title ) 
 return str_replace( ', 9 );

share|improve this answer

edited May 25 at 7:42

shea

4,66232752

answered May 16 at 17:08

cjbjcjbj

11k103067

add_filter( 'sanitize_title', function ( $title ) 
 return str_replace( ', 9 );

share|improve this answer

edited May 25 at 7:42

shea

4,66232752

answered May 16 at 17:08

cjbjcjbj

11k103067

edited May 25 at 7:42

shea

4,66232752

edited May 25 at 7:42

shea

4,66232752

answered May 16 at 17:08

cjbjcjbj

11k103067

answered May 16 at 17:08

cjbjcjbj

11k103067

1

If you put spaces in between the words and the separator | the permalink will automatically include dashes between the words. For instance try this as your post title:

house | something, bridge | somewhere

That results in the slug:

house-something-bridge-somewhere

share|improve this answer

answered May 16 at 16:56

MichelleMichelle

2,37131929

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for your post but this isn't really the solution as it requires that I change the titles, which is simply not how the company names it's projects, i.e. there shouldn't be any spaces.
  
  – Marg9
  May 17 at 11:36
  

  
  
  
  

add a comment | 

1

If you put spaces in between the words and the separator | the permalink will automatically include dashes between the words. For instance try this as your post title:

house | something, bridge | somewhere

That results in the slug:

house-something-bridge-somewhere

share|improve this answer

answered May 16 at 16:56

MichelleMichelle

2,37131929

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for your post but this isn't really the solution as it requires that I change the titles, which is simply not how the company names it's projects, i.e. there shouldn't be any spaces.
  
  – Marg9
  May 17 at 11:36
  

  
  
  
  

add a comment | 

If you put spaces in between the words and the separator | the permalink will automatically include dashes between the words. For instance try this as your post title:

house | something, bridge | somewhere

That results in the slug:

house-something-bridge-somewhere

share|improve this answer

answered May 16 at 16:56

MichelleMichelle

2,37131929

house | something, bridge | somewhere

house-something-bridge-somewhere

share|improve this answer

answered May 16 at 16:56

MichelleMichelle

2,37131929

answered May 16 at 16:56

MichelleMichelle

2,37131929

answered May 16 at 16:56

MichelleMichelle

2,37131929