Retrieving Object Property Columns from an Array

Within an application, it is often necessary to extract a specific property from a list of objects. This task can be accomplished efficiently in PHP, especially with newer language versions.

Extracting Properties with array_column()

PHP 7.0 and later introduces the array_column() function, designed for this exact purpose. To extract a column of property values, simply define the cats array as an argument, followed by the target property name:

$idCats = array_column($cats, 'id');

This line of code effortlessly generates a new array containing the IDs of each cat object.

Additional Consideration

It's essential to note that for array_column() to operate correctly, the object property being targeted must either be an array or converted to one. This ensures the proper functionality of the function.