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<?php $params = "colorgroup-b;test;colorgroup-a;abc"; var_dump(array_includes("colorgroup", $params)); //outputs: colorgroup-b function array_includes($needle, $params) { return preg_match_all('/[^;]*' . preg_quote($needle, '/') . '[^;]*/', $params, $m) ? $m[0] : false; }
Output for 7.1.25 - 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array(2) { [0]=> string(12) "colorgroup-b" [1]=> string(12) "colorgroup-a" }

preferences:
169.98 ms | 403 KiB | 178 Q