@Raymond Garcia​ , Please just use the Spark transform function. It will get every element from your array, and you can concatenate it with string as in your example. Here is an example of a transform function:

df = spark.createDataFrame([(1, [1, 2, 3, 4])], ("key", "values"))
 
df.select(transform("values", lambda x: x * 2).alias("doubled")).show()
+------------+
|     doubled|
+------------+
|[2, 4, 6, 8]|
+------------+