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<?php $posts_per_row = 2; //var_dump((int)$posts_per_row); if ((int)$posts_per_row == 4) { $column_size = "col-xs-6 col-sm-3, col-md-3"; } if ((int)$posts_per_row == 3) { $column_size = "col-xs-6 col-sm-4, col-md-4"; } if ((int)$posts_per_row == 2){ $column_size = "col-xs-6 col-sm-6, col-md-6"; } var_dump($column_size);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(27) "col-xs-6 col-sm-6, col-md-6"

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