How do I get an array containing only unique elements from multiple arrays?

Technical Q&A
1

Hi,

Below is the output of my code that shows an array with each of its element holding array of unique elements. I want to now get a new array out of this output which will contain unique elements. This means I need to get a single dimensional array with unique elements from the output like.

array ([0] => Atomizers, [1] => Bathroom Accessories and Sprays)

and so on . Thank you. Final array shouldn’t have any duplicates

Array
(
    [Product ID:8211684524336] => Array
        (
            [0] => Atomizers and Sprays
            [1] =>  Bath Hardware
            [2] =>  Bathroom Accessories
            [3] =>  Cristal&Bronze
            [4] =>  Cristallin - Smooth
            [5] =>  finish_chrome-gold
            [6] =>  finish_crystal-gold
            [7] =>  finish_gold-patina
            [8] =>  finish_lacquered-polished-brass
            [9] =>  finish_matte-antique-bronze
            [10] =>  finish_matte-chrome
            [11] =>  finish_matte-copper
            [12] =>  finish_matte-nickel
            [13] =>  finish_matte-pewter-style
            [14] =>  finish_matte-unlacquered-silver
            [15] =>  finish_medal-bronze
            [16] =>  finish_nickel-gold
            [17] =>  finish_polished-antique-brass
            [18] =>  finish_polished-chrome
            [19] =>  finish_polished-copper
            [20] =>  finish_polished-gold
            [21] =>  finish_polished-gold-3-microns
            [22] =>  finish_polished-nickel
            [23] =>  finish_polished-pewter-style
            [24] =>  finish_polished-velvet-chrome
            [25] =>  finish_rose-gold
            [26] =>  finish_unlacquered-brass
            [27] =>  finish_unlacquered-silver
            [28] =>  finish_velvet-chrome
            [29] =>  finish_velvet-gold
            [30] =>  type_large-q-tip-jar
            [31] =>  type_room-spray
        )

    [Product ID:8211639533872] => Array
        (
            [0] => finish_a1-polished-chrome
            [1] =>  finish_a2-polished-nickel
            [2] =>  finish_a3-unlacquered-brass
            [3] =>  finish_a4-polished-copper
            [4] =>  finish_b1-matte-chrome
            [5] =>  finish_b10-matte-copper-patina
            [6] =>  finish_b11-matte-antique-brass
            [7] =>  finish_b3-matte-nickel
            [8] =>  finish_b4-lacquered-polished-brass
            [9] =>  finish_b5-polished-antique-brass
            [10] =>  finish_b6-matte-copper
            [11] =>  finish_b7-polished-antique-copper
            [12] =>  finish_b8-matte-antique-copper
            [13] =>  finish_b9-polished-copper-patina
            [14] =>  finish_c10-polished-antique-bronze
            [15] =>  finish_c11-polished-black-bronze
            [16] =>  finish_c12-matte-black-bronze
            [17] =>  finish_c13-polished-soft-gold
            [18] =>  finish_c2-matte-antique-bronze
            [19] =>  finish_c3-medal-bronze
            [20] =>  finish_c4-polished-pewter-style
            [21] =>  finish_c5-matte-pewter-style
            [22] =>  finish_d1-polished-gold
            [23] =>  finish_d3-matte-soft-gold
            [24] =>  finish_e1-polished-gold-3-microns
            [25] =>  finish_e2-velvet-gold
            [26] =>  finish_e3-gold-patina
            [27] =>  finish_e5-unlacquered-silver
            [28] =>  finish_e6-matte-unlacquered-silver
            [29] =>  finish_e7-matte-gold
            [30] =>  magnification_3x
            [31] =>  magnification_5x
            [32] =>  Makeup Mirrors
            [33] =>  Makeup Mirrors - Wall-Mounted Non-Lighted
            [34] =>  Miroir Brot
        )

    [Product ID:8300518277424] => Array
        (
            [0] => Alfi Brand
            [1] =>  Medicine Cabinets
        )

    [Product ID:8211560235312] => Array
        (
            [0] => Kimball and Young
            [1] =>  magnification_5x
            [2] =>  Makeup Mirrors
            [3] =>  Makeup Mirrors  - Free Standing Lighted
            [4] =>  Makeup Mirrors - Free Standing
        )

    [Product ID:8211619086640] => Array
        (
            [0] => Bath Hardware
            [1] =>  Bathroom Accessories
            [2] =>  finish_brushed-black-chrome
            [3] =>  finish_brushed-nickel
            [4] =>  finish_polished-chrome
            [5] =>  Keuco
            [6] =>  Keuco Edition 400
            [7] =>  Soap Dishes
        )

)
2

I could solve it myself with the following PHP code. Thanks to all who might have wanted to help

<

$consolidated_product_tags = array_unique(array_merge($consolidated_product_tags, array_map(‘trim’, explode(“,”, $shopify_product_info[‘tags’]))));