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![Filtering with array functions [part 3] - DEV Community](https://res.cloudinary.com/practicaldev/image/fetch/s--hIe-bzDL--/c_imagga_scale,f_auto,fl_progressive,h_900,q_auto,w_1600/https://thepracticaldev.s3.amazonaws.com/i/j4gip4yvqdcplmd1q8a7.jpg "Filtering with array functions [part 3] - DEV Community")
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![Warning: array_filter() expects parameter 1 to be array, null given [#3303030] | Drupal.org](https://www.drupal.org/files/issues/2022-08-11/Screenshot%202022-08-11%20at%2011.07.46.png "Warning: array_filter() expects parameter 1 to be array, null given [#3303030] | Drupal.org")
Warning: array_filter() expects parameter 1 to be array, null given [#3303030] | Drupal.org
