Add class for splitting a list into lists of a predefined size

src/MD_STD.php

@@ -763,4 +763,32 @@ final class MD_STD {
         }
 
     }
+
+    /**
+     * Splits an lists of integers into parts of a predefined size and returns those
+     * as sub-lists of a superordinate list.
+     *
+     * @param integer[] $input Input array.
+     * @param integer   $size  Size of each part of the return set.
+     *
+     * @return array<integer[]>
+     */
+    public static function split_int_array_into_sized_parts(array $input, int $size):array {
+
+        if ($size < 1) {
+            throw new Exception("Size must be lower than 1");
+        }
+
+        $output = [];
+
+        $max = count($input);
+        $offset = 0;
+        while ($offset < $max) {
+            $output[] = array_slice($input, $offset, $size - 1);
+            $offset += $size;
+        }
+
+        return $output;
+
+    }
 }