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joshuafredrickson/add_image_sizes.php

Created October 10, 2025 21:58
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Add additional images sizes to WordPress
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add_image_sizes.php
<?php
/**
* Add image sizes
*/
add_action('after_setup_theme', function (): void {
$imageSizeColumnsAll = [3, 6, 9, 12, 18, 24];
$biggestImageSize = 1600;
foreach ($imageSizeColumnsAll as $column) {
add_image_size($column . '/12', ($column / 12) * $biggestImageSize);
}
}, 20);
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