Regular expressions (abbreviated regex) are terms that define a search pattern to focus on a specific part of a string for a specific purpose (e.g. to find/replace a word).

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4
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3answers
1k views

Nested Shortcode Detection

If you are familiar with this code <?php $pattern = get_shortcode_regex(); preg_match('/'.$pattern.'/s', $posts[0]->post_content, $matches); if (is_array($matches) && $matches[2] ...
3
votes
1answer
1k views

Check user logged in with JS

I use FaceBook JS SDK to check whether the user has permission to log in to my site or not. If user has permission I log him into the WP site. It is possible to check with JS whether the user ...
3
votes
1answer
1k views

Change html structure of all img tags in Wordpress

I have a Wordpress blog and am trying to implement the foresight.js image script. In short, I need to target all post images, swap out the src, width, & height attributes with data-src, ...
2
votes
4answers
1k views

rewrite rules and querystring

When I go to the url mysite.com/photos/120 I'm wanting to get the 120 out. In the PHP I want to be able to grab these "parameters" like the url was mysite.com?page=photos&id=120 or even just ...
2
votes
3answers
521 views

get attributes/part of the gallery shortcode

I'm trying to grab all image id's that are associated with the [gallery] shortcode that are listed as exclude. For example: if my post has [gallery exclude="1,2,3"] I'd like to get a variable that ...
2
votes
1answer
294 views

Retrieving all Links from a Post?

i'm using the default "insert video" function from wordpress (which inserts a normal hyperlink to the video only) and would like to replace that link with something else like a video player. my ...
2
votes
2answers
400 views

sql query to put quotes around numbers in img tag

I have quite a few old posts that contain an img tag with height and width with no double quotes around the numbers. For example: <img height=319 alt="" ...
2
votes
1answer
617 views

Replacing with(out) regex link to attachment by links to files

I tried to do it myself but I have really hard time with Regex (regex is hell. I just don"t understand). Anyway, I think this would be usefull to some people. The context is that we use a plugin to ...
2
votes
1answer
122 views

Rewrite of URL with '[' ']' or '(' ')' as literals

Trying to match and URL like this linktosite/alphaNum/123/321/alphanum[alphanum].jpg in .htaccess I can match and extract all the groups properly with ...
2
votes
1answer
134 views

Allowing shortcodes inside attributes

I want to do a Wikipedia-like infobox for some articles on a WP site. I guess the most logical thing to do it is to use a custom shortcode—one that returns a table-like markup with a fixed order of ...
2
votes
1answer
131 views

Regex in add_rewrite_tag not accepting OR operators?

I am trying to add a custom field to the post permalinks by using a combo of add_rewrite_tag and applying a post_link filter. What I am aiming for is something like this: ...
1
vote
2answers
1k views

How to change the admin menu “Pages” to something else

When one creates a custom post type you have the ability to define various elements related to that post type which essentially allow you to define things such as the menu title, "add new post" text ...
1
vote
2answers
814 views

How to apply content filter permanently?

I have the following temporary filter to fix a content error. We have data in our posts that have 4 digit zip codes, because the leading zero was cut when the original file was created. (For instance, ...
1
vote
3answers
2k views

Getting attribute value from shortcode

I have this shortcode [learn_more caption="something here:"] [/learn_more] I want to extract the caption value and remove other stuff. "something here:" This is the code that I have, but it ...
1
vote
1answer
1k views

extract shortcodes from string

i need a little help to with this issue: I have a string wich contains shortcodes like [shortcode data="1" data2="2"] How I can extract with regex? without wordpress system? Thanks in advance.
1
vote
1answer
111 views

Why won't my preg_replace work with content_save_pre?

I've written a filter function to replace all image URLs in a post with URL from the Uploads directory of my site. However, when using the content_save_pre, filter it won't actually work - but if I ...
1
vote
1answer
229 views

preg_replace and comment_form_defaults

this was kinda of a joke at the beginning but now I'm wondering if it's possible to use regex with the hook comment_form_defaults. Here is what I'm looking for : function remove_default_allowed_tags( ...
1
vote
1answer
227 views

Regex to Remove File Extension

I am using the Redirection plugin and I would like to use it to redirect my old static html pages to the new Wordpress pages. So basically anything that looks like http://www.example.com/page.html ...
1
vote
3answers
427 views

404 regular-expression advice needed

I have been working hard trying to understand regular-expressions to use in my web site using the redirection plugin. I have changed my permalinks a few times in the past year because I did not know ...
1
vote
1answer
85 views

Custom rewrite_rules - only pass numbers and not alphabetic characters

I'm trying to add a rewrite rule to pass a var to a custom page template. For some weird reason it only excepts numbers in the variables, when I type in characters other then number it directs to ...
1
vote
1answer
96 views

String regex match replace for role 'contributor' only

currently I'm using the below code to add rel=nofollow and target=_blank to all external links of my site's content but I would like this to happen only on Contributors posts. IE, Authors posts and ...
1
vote
1answer
985 views

Wordpress returns 404 on custom rewrite rule conflict in parameters

I have been following the steps on the answer here and it worked wonders. But my problem is on this part, on the original: add_filter('rewrite_rules_array', 'mmp_rewrite_rules'); function ...
1
vote
3answers
520 views

Making extra parameters optional

I've setup a very specific function and it works well but I'd like to make the parameters optional but I can't get a handle on the regex bit: add_rewrite_rule('whats-on/([^/]+)/([^/]+)/([^/]+)/?$', ...
1
vote
0answers
18 views

Compare meta_query with a Regular Expression and do a less-than operation on it

I have the problem that my client is using a theme which stores options of items in a serialized way in the post_meta table. I already found out that this is not the best way to save values ...
1
vote
1answer
48 views

Grab Wordpress Salt Data From URL

I'm looking to grab only the values of the Wordpress salt information from this URL with PHP: https://api.wordpress.org/secret-key/1.1/salt I want to target the second set of values within single ...
1
vote
1answer
139 views

Processing shortcodes in groups (separated by line breaks)?

The Project I'm working on a plugin to resize and embed rows of images using shortcodes that will be converted into <img> tags. In most cases there will be multiple images per row, and the ...
1
vote
0answers
77 views

Regex to turn embedded images in to attachments

I've got a blog that has all images embedded in each post rather than a thumbnail linking to an attachment page which is what I'd like. I understand from this question that no plugin (like Regenerate ...
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vote
0answers
104 views

What add_rewrite_tag()'s RegEx matches against?

I'm trying to figure out wether I can specify the position of the string to match (i.e. immediately after the domain) to reduce the chances of matching something else, but I don't even know what the ...
1
vote
0answers
164 views

Struggling with add_rewrite_rule

I've read this: Wordpress redirection to get url friendly That led me to this: 1) wp.tutsplus.com/tutorials/creative-coding/the-rewrite-api-the-basics/ 2) ...
0
votes
2answers
253 views

What is the structure of the “Featured Image” field in the DB?

On a WP install with about 1400 images and the Media Tools 1.1 plugin, I ran both "Import External and Set Featured Image" and "Set Featured Image". But the featured images functionality didnt work, ...
0
votes
2answers
388 views

how to properly rewrite url by custom var

ive been trying to rewrite a shop uri, and what i have now is this code: add_filter('rewrite_rules_array','wp_insertMyRewriteRules'); add_filter('query_vars','wp_insertMyRewriteQueryVars'); ...
0
votes
1answer
29 views

Extract attribute values from every shortcode in post

I have multiple shortcodes in the post: [section title="first"] [section title="second"] [section title="third"] I want to extract all title values (i.e first, second, third) from external ...
0
votes
1answer
129 views

How to dequeue a stylesheet by src, not handle?

I'm trying to develop a Wordpress plugin that will dequeue/deregister Font Awesome stylesheets added to a theme by certain plugins that users may install, if the theme already make use of Font ...
0
votes
2answers
3k views

How to make search include data from wp_postmeta?

I have a site using Advanced Custom Fields to create and store various bits of relevant info. These need to be included in the main general search, which by default only searches the title and main ...
0
votes
1answer
944 views

get_shortcode_regex() only matches first shortcode

The Codex has an example of using get_shortcode_regex() to check if a shortcode is being called on a given page: $pattern = get_shortcode_regex(); preg_match('/'.$pattern.'/s', ...
0
votes
1answer
99 views

Getting shortcode attribute values and shortcode content with JavaScript regex

This is an example shortcode: [boutique_banner title="Loyalty Program:" link="More" linkhref="/"]Earn 1 point for every $5 spent[/boutique_banner] I have created a custom mce view to display this ...
0
votes
1answer
190 views

Adding elements to wp_list_pages (within <li>, but before <a>)

I'm working on my first wordpress theme and I'm running into some trouble. I'd like to add an extra div (which I'll style in css) within each <li>, but before the actual <a ... > element ...
0
votes
3answers
73 views

Why isn't my rewrite rule working when there is no second parameter?

Here is my rewrite rule code: add_rewrite_rule('tides/([^/]+)/([^/]*)', 'index.php?page_id=4348&location=$matches[1]&month=$matches[2]', 'top'); add_rewrite_tag('%location%', '([^&]+)'); ...
0
votes
1answer
161 views

Delete/replace img tags in post content for auto published posts [closed]

In my blog I have set up auto-publish for posts and I get 5 thousands new posts every day, in this moment I have more than 150 thousand posts. I need a script, or a plugin, or a function to connect ...
0
votes
1answer
107 views

Photos automatically uploaded to Media Library

Here's a bizarre one for you guys. I was using Search RegEx to remove Blogger html formatting that was screwing up my imported posts. Images hadn't been imported, so they were loading from Blogger ...
0
votes
2answers
229 views

How to deal with Wordpress bug: can't use wrapped and unwrapped shortcode on same post

After trouble parsing wrapping and non-wrapping shortcodes on the same page, I came across this trac ticket from 3 years ago: http://core.trac.wordpress.org/ticket/9264 The trouble is WP cannot ...
0
votes
1answer
199 views

Extract Information from post content (using regex?)

I'm trying to replace some custom strings in my content before saving the post. I have got the $data["post_content"] which includes strings like %replaceContent:{type}% . Now I need to extract that ...
0
votes
2answers
279 views

Testing a Form's Zipcode Field with Regular Expressions to Determine Wordpress Page Behaviour

I want to use a Regular Expression(regex) to test the value of a form's zipcode field on a WordPress page, then based upon those results either: Selectively assign/reveal price fields on the same ...
0
votes
1answer
20 views

Shortcode and whitespace formatting problem

I'm having a problem with shortcodes on a website, currently you enter a shortcode in the post edit screen like the following: [tab name=Itinerary] This will output a tab such as: However as ...
0
votes
0answers
19 views

Regex replace on the fly

Heres the example content on all my post <img width="550" height="486" src="http://www.xyz.com/wp-content/uploads/2014/12/-550x550-550x486.jpg" /> <img width="760" height="486" ...
0
votes
0answers
12 views

Adding a hash to a url in .htaccess

I am using a js hash listener to display a modal window if the /hash matches the id of the element. /brands/type/#name-of-product Works fine. However, default WP behavior will match any ...
0
votes
0answers
23 views

Meta query with regular expression

I am using regular expression to refine the post it works fine but i want change it such that it can work with meta query instead of post title here is my code function wpse18704_posts_group( $where, ...
0
votes
0answers
42 views

.htaccess restrict subdomain by IP - Wordpress Multisite

I'd like to redirect traffic away from a subdomain install of Wordpress Multisite unless it's coming from a specific IP address/range, and without affecting the root domain traffic. Is this possible? ...
0
votes
0answers
29 views

Add custom dynamic string to permalink structure wordpress

I am adding dynamic string to permalink but the problem is all the pages which runs from page.php goes to 404 whereas the detail page of the post is working fine. Code: add_filter('post_link', ...
0
votes
1answer
61 views

Wrapping shortcodes in another shortcode

I'd like to wrap existing shortcodes in post content inside a new shortcode that I'm adding to my plugin. The existing content looks like this: Some text - could be <span>HTML</span> or ...