Help with metadata arrays?

Thanks for your question. Depending on what you mean by “output (print) the dimensions of an image to the page” there are several ways to accomplish your goal.

As you’ve seen, the image dimensions are available in the “attachment metadata” WordPress stores for each image in the Media Library. The dimensions and many other data about the items can be accessed and displayed with the [mla_gallery] shortcode. For example, to display the dimensions of images attached to a page or post you can add this shortcode to the page/post content:

[mla_gallery mla_caption="[+caption+]<br>Dimensions: [+width+]x[+height+]"]

The above will display the image thumbnail, the caption and under the caption the image dimensions. There are many other [mla_gallery] parameters for selecting items and displaying data; see the Settings/Media Library Assistant Documentation tab for details and examples.

If you can give me more details about where the information is displayed and how to select the image(s) you want I can be more specific. I am marking this topic resolved, but please update it if you have any problems or further questions about the above suggestions. Thanks for your interest in the plugin.

Hello David, thanks for your answer!

Well, in my case, I would need to output only the image dimensions. This image would be directly specified by me.

For example, I have the “example1.jpg” in my uploaded media.

I would just need to print its size, with no need to display the image. Like this.

“Info about the file example1.jpg”
“Dimensions: ###x###”

So, I would specify the file manually myself, and all I need to is that the code output its dimension.

Is that possible?

Something like this (purely fictional code, I’m sure it is probably nothing like that).

[mla_gallery file=”/uploaded/example1.jpg” output=”Dimensions: [+width+]x[+height+]”]

… where the file is not displayed, only its dimensions.

Thanks for your updates with the additional details on your needs. Here are two solutions, depending on how you specify the file:

[mla_gallery ids=3516 size=none link=none mla_link_text="Dimensions: {+width+}x{+height+}"]

[mla_gallery meta_key="_wp_attached_file" meta_value="2015/08/davidL1.jpg" size=none link=none mla_link_text="Dimensions: {+width+}x{+height+}"]

Every item in the Media Library is assigned a unique ID value, which you can see in the Media/Assistant submenu table Parent/ID column. If you know the ID value the first example above will use it to access the item associated with the file. It’s the more efficient way to access the information.

The second example uses the “Base File” value, which is also available in the Media/Assistant submenu table. WordPress creates the _wp_attached_file entry in the postmeta table to link the Base File path and name to the ID value for the item. On my system the Media Library items are organized by year and month (an option on the Settings/Media submenu). If you don’t use that option the meta_value would simply be the file name.

The size=none link=none parameters suppress the default display of a thumbnail image in a hyperlink to the item’s attachment page. The mla_link_text parameter replaces the item’s Title with the content you want.

Wow David, thank you so much! ??

It is exactly what I need!

Congrats about you awesome plugin and thank you for your great support!

Hi David.

Just one thing about the code you gave.

Seems that when a picture has a description (image_meta=>caption), it is printed right bellow the dimensions. There is a way to prevent that?

Thanks for your updates with the good news. I am happy that my suggestions proved useful.

If you want to suppress the caption you can use this syntax: mla_caption="{+template:({+empty+})+}". I know it looks a bit odd, but if you just code mla_aption="" the empty string is replaced by the default value.

Thanks David, it worked perfectly. ??