Let's look at an example with a PHP array that holds names of different guitar manufacturers. Sort() function sorts an array in an ascending order. To PHP sort array by value, you will need functions asort() and arsort() (for ascending and descending orders). To PHP sort array by key, you should use ksort() (for ascending order) or krsort() (for descending order). There are four functions for associative arrays - you either array sort PHP by key or by value. Both functions assign new keys to the elements they sort, which means the original keys will be lost.

Conversely, rsort() sorts arrays in decreasing order. First, we have the sort() method used to array sort PHP code in an ascending order. sort () and rsort () The sort() function is the basic sorting tool in PHP for numerical arrays. Let's look at the various PHP array sorting functions. It's possible to array sort PHP by key or by value, in numerical, alphabetical, descending and ascending orders.Some of the functions can only be used for associative arrays.PHP offers multiple built-in functions for PHP array sorting.Calls to get_field() or the_field() happen inside an action hook/filter which fires after your fields have been registered, or inside your theme’s template files.īelow is an example of how to correctly register fields using the acf/init hook.Field groups registered via PHP are registered after ACF has initialized, preferably on the acf/init hook.Optionally, an indexkey may be provided to index the. From 5.11.2, we will still return data along side this warning to avoid site errors while you modify your code to be compatible. arraycolumn() returns the values from a single column of the array, identified by the columnkey. Starting with 5.11.1, ACF will detect if this has happened, and output a _doing_it_wrong notice to your PHP error log. This means that if you call those functions before your local field groups are registered, ACF won’t be able to find those fields. It’s important to note that calling get_field() or the_field() will initialize ACF if it hasn’t done so already. We recommend registering any local fields on the acf/init action hook or directly in your theme’s functions.php file. Registering Fields via PHPĪny fields registered using the acf_add_local_field_group() and acf_add_local_field() PHP functions should be registered before get_field() is used. In ACF 5.12.1, these restrictions now also correctly apply when using a field key to access an option value, the same as using the field name. Developers should use the get_option() function to retrieve data in the wp_options table, or the get_post_meta() function to retrieve meta from the wp_postmeta table. To avoid this, we recommend using WordPress core functions to retrieve non-ACF field data. However, using those functions to retrieve any post, user or term meta will return the value, regardless of if the meta is an ACF field. The update to ACF version 5.11.2 means that calling the ACF shortcode on non-ACF options or post, user or term meta will return null, whereas before it might have returned the value.Ĭalls to get_field() or the_field() on non-ACF WordPress options will also return null. Using ACF Functions to Retrieve Data From Outside ACF This doc will go over some of those scenarios and offer some solutions.įor ACF 5.11 and 5.11.1, the data access changes for the ACF shortcode were also applied to get_field() and the_field(). While this should be fine for most sites, there are a few scenarios that might require special attention. With ACF 5.11.2 and above, the ACF shortcode will only retrieve values for registered ACF fields, whilst get_field() and the_field() will prevent access to site options which are not registered ACF fields. As a result it would be less performant to use get_field instead of the relevant WordPress core functions. These functions run additional logic and database queries to find a valid field and format it correctly. In addition, these functions could retrieve values of fields that are no longer registered with ACF, as their meta values remain in the database.Īside from being a security risk, we don’t recommend using functions like get_field() to get anything other than an ACF field. Depending how these functions were used, it could have security implications as site options could inadvertently be exposed to the frontend or to users who do not have admin permissions. In versions of ACF prior to 5.11, the ACF shortcode, along with the get_field() and the_field() functions, could also be used to retrieve WordPress options or post, user or term meta values which weren’t ACF fields.

Php array sort by field