add Arrays::columnAsKey

Author: MartkCz

src/Arrays.php

@@ -45,6 +45,21 @@ public static function firstValue(array $array)
 		return $array[$key];
 	}
 
+	/**
+	 * @param mixed[] $array
+	 * @param string|int $column
+	 * @return mixed[]
+	 */
+	public static function columnAsKey(iterable $array, $column): array
+	{
+		$result = [];
+		foreach ($array as $values) {
+			$result[$values[$column]] = $values;
+		}
+
+		return $result;
+	}
+
 	/**
 	 * @param mixed[] $previous
 	 * @param mixed[] $current

tests/cases/arrays.columnAsKey.phpt

@@ -0,0 +1,14 @@
+<?php declare(strict_types = 1);
+
+use Tester\Assert;
+use Utilitte\Php\Arrays;
+
+require __DIR__ . '/../bootstrap.php';
+
+
+Assert::same([
+	5 => ['id' => 5],
+	6 => ['id' => 6],
+], Arrays::columnAsKey([
+	['id' => 5], ['id' => 6],
+], 'id'));