Yogesh Chauhan's Blog

WordPress: How to get field values in Advanced Custom Fields?

in WordPress on February 21, 2021

Advanced Custom Fields is one of the most popular WordPress plugins. It is loved by developers as well as content managers as it makes editing the pages and posts very easy. It is very flexible and works easily with custom post types as well.

These are some basic examples of ACF fields retrieval using code.

How to display a simple ACF field?

There is a function in ACF that we can use to retrieve and display the field. It’s the_field($field_name). We just need to pass the field name to get the value of it and print it.



<p><?php the_field('field_name'); ?></p>


How to save a simple ACF field in a variable?

We can also save the field into a variable and then use it anywhere in the file. For that we ACF has a function get_field(‘field_name’). We just need to pass the field name just like the previous function.



<?php
  $variable = get_field('field_name');
  echo $variable * $variable; // assuming it's a number
?>


How to use conditional statements on a simple ACF field?

We can use the same function get_field(‘field_name’) and use it with different conditions.



<?php
  if(get_field('field_name'))
  {
    echo '<p>' . get_field('field_name') . '</p>';
  }
?>


The example above basically checks if get_field has any value in it. It returns false if the field is empty (value == “”) OR the value == null OR the value == false.

How to get Image field saved as URL return?

If we set the Image field as a basic URL return then it’s basically like creating a simple text variable and adding an URL to it. Though, ACF is NOT exactly doing that.



<img src="<?php the_field('image_acf_field'); ?>" alt="" />


We can not dynamically set the alt since we are not setting the return value as an object. Let’s see how we can do that.

How to get Image field saved as an Object return?

The difference between the previous example and this example is that in this example, we are setting the return for the Image field as an image object. The image object will have all image attributes like alt, src, title, description and other element attributes.



<?php $image = get_field('image_acf_field');?>
<img src="<?php $image['url']; ?>" alt="<?php $image['alt']; ?>" />


By using the ID, we can also retrieve any crop size of the image and even get the name of the file!



<?php $image = get_field('image_acf_field');?>
<?php $image = wp_get_attachment_image_src(get_field('image_acf_field'), 'full'); ?>
<img src="<?php echo $image[0]; ?>" alt="<?php echo get_the_title(get_field('image_acf_field')) ?>" />


You can read more on ACF Docs


Most Read

#1 Solution to the error “Visual Studio Code can’t be opened because Apple cannot check it for malicious software” #2 How to add Read More Read Less Button using JavaScript? #3 How to check if radio button is checked or not using JavaScript? #4 Solution to “TypeError: ‘x’ is not iterable” in Angular 9 #5 PHP Login System using PDO Part 1: Create User Registration Page #6 How to uninstall Cocoapods from the Mac OS?

Recently Posted

#Apr 8 JSON.stringify() in JavaScript #Apr 7 Middleware in NextJS #Jan 17 4 advanced ways to search Colleague #Jan 16 Colleague UI Basics: The Search Area #Jan 16 Colleague UI Basics: The Context Area #Jan 16 Colleague UI Basics: Accessing the user interface
You might also like these
Killing A Project Part 2: Who should make the decision to kill a project?MiscellaneousA quick introduction to API, REST API and PostmanMiscellaneousHow to add recaptcha version 3 to PHP website?PHPWhat’s a repository on Github?MiscellaneousHow to convert datetime to date format in JavaScript?JavaScriptArray.from() Method in JavaScriptJavaScriptHow to create a horizontal scrolling menu with and without flex using CSS (or SCSS)?CSSWP_Query Class in WordPressWordPressThe difference between isFinite() method and isFinite() function in JavaScriptJavaScriptWhat Does Host-Based Intrusion Detection System (HIDS) Mean and What Are Some Advantages Over NIDS?MiscellaneousHow to undo Git Commits on Pantheon?MiscellaneousCSS Attribute SelectorsCSS