regex - Read For Learn

add_rewrite_rule isnt working, not getting added to rules array, why?

Try this. You also don’t want to include $wp_rewrite->flush_rules() inside your function as that would flush on every page load. add_action(‘rewrite_rules_array’, ‘new_rewrite_rules’); function new_rewrite_rules($rules){ $newrules = array(); $newrules[ ‘^lists/([^/]*)/([^/]*)/?’ = ‘index.php?lists=$matches[1]&post=$matches[2]’; return $newrules + $rules; } If you want to flush the rules only once then try this: add_action(‘init’, ‘flush_new_rule’); function flush_new_rule(){ global $wp_rewrite; if(is_array(get_option(‘rewrite_rules’)) … Read more

How to filter out shortcode when displaying the_excerpt() in the loop?

try this add_filter( ‘get_the_excerpt’, ‘strip_shortcodes’, 20 ); or try this edit echo strip_shortcodes( get_the_excerpt() ); if shortcode is not register with wordpress function add_shortcode add_filter( ‘the_excerpt’, ‘remove_shortcodes_in_excerpt’, 20 ); function remove_shortcodes_in_excerpt( $content){ $content = strip_shortcodes($content); $tagnames = array(‘box’, ‘alert’); // add shortcode tag name [box]content[/box] tagname = box $content = do_shortcodes_in_html_tags( $content, true, $tagnames ); … Read more

How do I remove all hyperlinks that begin with a #?

Inspired by @Samuel Elh, but accounting for single or double quoted attributes and a href that might not be the first attribute of an anchor: function wpse_227315_strip_hyperlinks( $content ) { preg_match_all( ‘!<a[^>]*? href=[\'”]#[^<]+</a>!i’, $content, $matches ); foreach ( $matches[0] as $link ) $content = str_replace( $link, strip_tags( $link ), $content ); return $content; } add_filter( … Read more

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

You should probably not run preg_replace on the meta data for a _wp_attachment_metadata field as the data is serialized. I would recommend instead you write a small script to loop through the images, unserialize the data, update the value, serialize and store the modified array. Here’s a sample function which does just that: function wpse_135525_fix_imagepaths() … Read more

Wrap First Character after in a tag

The major issue is just that you have a positive lookbehind but no capture group so \1 or $1 isn’t a usable variable. Fix your regex to provide the capture group: ‘/(?<=\<\/h3\>\n<p>)(.)/’ then reference as $1. ob_start();?> <h3>Heading</h3> <p>Paragraph</p> <p>Paragraph2</p> <?php $search = ob_get_clean(); $result = preg_replace( ‘/(?<=\<\/h3\>\n<p>)(.)/’, ‘<span class=”dropcap”>$1</span>’, $search );

How to properly rewrite url by custom var

So, first off, never flush rewrite rules on every page load. Better to do it on plugin activation one time. Step 1: add the rewrite rule: add_action( ‘init’, ‘wpse26555_add_rewrite’ ); function wpse26555_add_rewrite() { // You should probably rewrite to index.php instead of shop.php? add_rewrite_rule( ‘/shop/brand/([^/]+)/?$’, ‘index.php?brand=$matches[1]’, ‘top’ ); } Step 2: add the query var … Read more

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

Another easy one! 🙂 As you know I think very highly of WordPress in general, but the admin menu architecture is one of the nastiest hacks I think I’ve ever seen in open-source software. What’s only greater in magnitude is the core WordPress team’s unwillingness to acknowledge how bad it is and their lack of … Read more

Processing shortcodes in groups (separated by line breaks)?

I think it is easier to introduce the shortcode [imgs] that could be used like this: [imgs id=”12,13,14″ w=”200,300,400″ h=”300,400,500″] [imgs id=”19,20″ w=”50,60″ h=”80,100″] then you can explode each attribute with respect to comma (,) and loop over corresponding array.

Rewrite of URL with ‘[‘ ‘]’ or ‘(‘ ‘)’ as literals

I’ve found this to be one of the more poorly documented features of WordPress, so hopefully this is on track or will be corrected by someone more fluent in WP_Rewrite. The basic gist is thus: During plugin activation and when flushing rules, ensure your custom rule is added to the list. During init, use add_rewrite_tag() … Read more

Struggling with add_rewrite_rule

Have you tried third parameter as “top” into add_rewrite_rule ? Something like this: add_rewrite_rule($regex, $redirect, ‘top’); And also re-save permalink settings.

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