If there are attachments returned from get_attached_media(), we loop through them and construct an tag for each of them. The href needs to be the full size image Anyway, you can always change your mind by removing or changing the logo at a later point in time. What is sanitization? One function to define a size, another one to use it. I cant stop praising WordPress when it comes to the conveniences it provides. That was it. Data Sanitization is just a security precaution. Would it be possible with wp_is_mobile? Hence, we are going with theget_bloginfo()function. So, we are just storing the value of the first item of the$custom_logo_dataarray inside the$custom_logo_urlvariable. Top Parameters $attachment_id int Required Attachment post ID. To display this custom logo, we need to get its URL first. How do you get the full size url of an attachment image And that is all you need to know about manually outputting the custom logo. I found another issue with Gutenberg Editor : when you upload an image using the block image tool, it upload the image in the current month folder and not the month where the original post was published. We should never hard-code any values that a client can change via the Admin Dashboard. You can use wp_get_attachment_image() which generates an img tag along with its responsive srcset and sizes attributes. And, if you switch back to the browser, youll still see the same out. If it's not, the existing size's dimensions will be overwritten with the rest of the values we pass on the function. 1 Actually, something else seems to be happening here. wp_get_attachment_image_url () Frankly speaking, We dont use this parameter that often in our local development environment. Instead of a boolean, this parameter may also be an array to specify how to crop the images. And we can use the following WordPress functions to get access to the information we need: Now, lets put the above WordPress functions to the practice. The objects returned can be filtered to just images, by setting the first parameter to image. But, it is ideal to not trust any piece of data in the World of the Internet. Mobile item 28. https://www.webpagetest.org/result/211112_AiDc08_4bcbf04428bb42e52df7589ce3532a4a/1/details/#waterfall_view_step1. But will not it be necessary to make an adjustment in terms of mobile view? Check out the new WordPress Code Reference! So, I think its not really linked to Gutenberg Editor but to a change in WordPress 5.0 core. If the logo is not uploaded, we can not a show empty space in the place of the logo, right? If we echo the above URL directly to the browser, It is basically an XSS attack and youll see the following alert in the browser: Now lets sanitize the above malicious URL using theesc_url()function like this: If you notice the above URL, theesc_url()function removed the less than( < ) and greater than( > ) symbols from the URL all together. I believe this would bypass WP caching (I could be wrong on this). If its unique, a new size will be created with that name. wp_get_attachment_image_src | PHP [php1st.com] Feedback Parameters $attachment_id int Required Image attachment ID. Your email address will not be published. It can be thought as a very simple approach to creating a custom gallery, but for the purpose of this tutorial the images will be short and wide, 750150 to be exact. So, it is extremely important that we provide an easy way for the client to upload and change the site logo at any time and place. If true, the image will be cropped, and if false, the image will be scaled down proportionally as to maintain its ratio but still be within those maximum dimensions. :) [updated] var_dump ($my_image) returns: array (1) { [0]=> string (86) "http://localhost/theme/wp-content/uploads/2014/10/my_image.jpg" } thats weired. width int The width of the attachment. Of course, It Works! Now that we have a button to upload the site logo, lets upload the following logo: The size of the above logo is 140x88px. The image custom size image (gallery-thumb) needs to load into data-src for lazy loading (with no src), For the image, I used wp_get_attachment_image(). There is one important difference between theget_bloginfo()and thebloginfo()functions. Get Attachment ID from Image URL - WordPress - Propatel You can change the output of this function through the wp get attachment url filter. Sample code that gives you a root-relative URL to your attachment: Copy Thanks for the post. The images appear but are clearly the wrong size. In case there was a size that was a bit close to our requirement but not quite, e.g. Hello, The latter is assigned to the src attribute. - random_user_name Apr 30, 2012 at 19:39 More context here: The image custom size image (gallery-thumb) needs to load into data-src for lazy loading (with no src) For the image, I used wp_get_attachment_image () $image = wp_get_attachment_image ( $attachment_id, 'gallery-thumb', false, array ( 'class' => 'lazy image_zoom', 'data-src' => $url, 'src' => '') ); For example, if you are using MAMP, this is what you get: But, you can change this by using the parameters that thehome_url()function accepts. Featured image in mobile view: Image in mobile view (full size is loaded): Image in desktop view (scaled size is loaded): can you try adding this Snippet to your site: Not sure it will work but it would should do is stop WP from adding any other sizes to the src-set. Rendering Repeaters We've also provided some use cases you can test on your WordPress website. I dont need to tell you the importance of a Logo for a website. You can put this code anywhere inside the
element. Buy Now, Extend the block editor with flexible blocks, How to add custom image sizes to your theme. If you use instead the media library, it upload the image in the month folder of the original post published date. wp_attachment_is_image (519271) returns true Viewing 10 posts - 1 through 10 (of 10 total), https://www.webpagetest.org/result/211112_AiDc48_e3af52caf6620cbffec496c96b68fc49/1/details/#waterfall_view_step1, https://www.webpagetest.org/result/211112_AiDc08_4bcbf04428bb42e52df7589ce3532a4a/1/details/#waterfall_view_step1, https://docs.generatepress.com/article/generate_page_header_default_size/, https://github.com/tomusborne/generatepress/blob/adfe090929b0515cdf894f4c6b722cfe8c0790dc/inc/structure/featured-images.php#L34-L51, https://developer.wordpress.org/reference/functions/get_the_post_thumbnail/, https://wordpress.stackexchange.com/a/293839, https://wordpress.stackexchange.com/a/395408, This topic has 9 replies, 4 voices, and was last updated. Did you regenerate your thumbnails after you added the function? We then get all attached images via the get_attached_media() function. Rendering Media | Elementor Developers And the width and height attributes on thetag forces us to write CSS in a limited way. The link points the users to the Homepage of our website and the image source is the URL of the logo we just uploaded. Accepts any registered image size name, or an array of width and height values in pixels (in that order). So, let's go to the Admin Dashboard -> Customize -> Site Identity Options Panel and check it out. So, go back to theheader.phpfile and call the above function inside the
with classlogo. this can be done with the set_post_thumbnail_size() function. }. In the above line, using thewp_get_attachment_image_src()WordPress function, we are getting the custom logo like its dimensions, URL etc. This is character escaping in action. Even if it is coming from your own sites database. Your email address will not be published. - kjetilh Mar 7, 2013 at 14:05 its the part of the content. Once you have uploaded the logo, hit the publish button at the top to save the changes. I defined medium size and width 300px / height 154px. The href needs to be the full size image 2. Lets view the post. As we said earlier, WordPress creates the intermediate image sizes at the time of the upload, so newly defined image sizes have no effect on previously uploaded images. We can see that there are no image sizes with the dimensions we need, or any that are a bit close to what we need anyway. The 300w, 768w and 1024w you see on the srcset should be the condition for viewports. Also all other image in the post (beside the images loaded via WPSP) are scaled on desktop and full size on mobile. Accepts any registered image size name, or an array of width and height values in pixels (in that order). wp_get_attachment_image_url - works similarly to wp_get_attachment_image function, but instead of returning the whole <img> html string, it only returns the URL of the image the_post_thumbnail - displays the post thumbnail sizes array Keys are size slugs, each value is an array containing 'file', 'width', 'height', and 'mime-type'. We can force WordPress to regenerate the intermediate image sizes for all existing images. If you notice thetag, you can see the width and height attributes on it. In fact, if we just echoed our tags from within my_wide_images_after_the_content(), they would show up before the content, as $content would actually be echoed later. Hi Tom, 1 time 0.002972 sec (very slow) | 50000 times 10.29 sec (slow) | PHP 7.1.5, WP 4.8.1 This minimizes disk space usage, but carries the overhead of checking whether the requested size exists on every request, and actually generating it if it doesnt. Required fields are marked *. wp_get_attachment_image_srcset () | Function | WordPress Developer Use the coupon code SUMMER and save 30% OFF! So, I did not provide the parameter at all. Intermediate image sizes are then ready to be served by WordPress or the web server, with no additional overhead. We will be going through them when the time comes. Here is the finalfheader.phpfile for this lesson: Now that we are done with the HTML markup of Site Logo, in the next lesson, we will fix the styling of the Header. Only down. Im not sure Im seeing what you mentioned. wp_get_attachment_image_url (WordPress Function) The first parameter is required, and is the attachment ID (i.e. The first item inside the array is the image URL that we need. Just go to Dashboard Tools Rebuild Thumbnails again, make sure my_wide is selected, and press the Rebuild All Thumbnails button. Go the theme directory and upload your logo with a specific file name.. WordPress provides us with thethe_custom_logo()function to display the logo. So, we are wrapping the Logo inside a hyperlink that takes the user to the Homepage of the website. $size string | int [] Optional Image size. 423 4 17 Where are you using the wp_get_attachment_url () function? WordPress lookup for wp_get_attachment_image_url, a WordPress Function. // retrieves the attachment ID from url function pp_get_image_id ($image_url) { global $wpdb; It is a process of escaping or removing potentially malicious content from the data if it exists. If its about changing the default size used by the featured image, you can use this filter: Tell that first!. Anyhow, WordPress made its choice a long time ago and went with the former approach. wp_get_attachment_image_srcURL If you dig up some old themes in the market, you can still see this. Wordpress get image url (currently using wp_get_attachment_url) Just go to Dashboard Tools Rebuild Thumbnails to see them all together. Now,a conditional tagis nothing but a PHP function which returns a true or false. Home Blog Tutorials How to add custom image sizes to your theme. Because a few extra kilobytes of a logo image does not really impact your frontend page load speed. wp_get_attachment_image_src always returns false I will write a post about that. At wpSocket, we aim to bring the best WordPress Developers, Administrators, Bloggers, Outsourcers, Freelancers, Site Owners, Buyers, Sellers under the same hub and spoke. So, dont worry about it . And we can only use a conditional tag only inside a conditional statement like IF, ELSE IF, WHILE, etc. We are using theesc_url()WordPress function to sanitize the URL. Function Reference/wp get attachment url WordPress Codex Also all other image in the post (beside the images loaded via WPSP) are scaled on desktop and full size on mobile. In our case, we have uploaded the logo, so the above function will return true and WordPress will process the code inside the IF condition and outputs the image link markup to the browser. 1125225 we can use that instead of defining a new one. How? Now, lets var dump the$custom_logo_datavariable to examine whatwp_get_attachment_image_src()is returning. 1 I do not see a way to get the URL to the full sized image of an attachment. Accepts any registered image size name, or an array of width and height values in pixels (in that order). In order to get the URL for the specific images size, we use the wp_get_attachment_image_url() function. Copyright 2012 2023 CSSIgniter. $size string | int [] Optional Image size. No worries though. How can I make them show something interesting?. This is a 2x version of the actual logo and we should always upload a 2x logo version to support retina mobile devices and retina desktop/laptop monitor. So, we are getting the Image ID for the custom logo using: And we are saving it to the$custom_logo_idvariable. https://wordpress.stackexchange.com/a/293839 attached) will be displayed right after the rest of the content.
