How can I convert a one-dimensional array into a two-dimensional array based on the correlation between key names? Thanks

How can I convert this one-dimensional array into a two-dimensional array based on the correlation between key names? Thank you, big brother! My one-dimensional array is as follows: PHPcode? Array ([xm1] = & gt; artificial new pipeline well [dj1] = & gt; 300 [sl1] = & gt; 100 [zj1] = & gt; 30000 [xm2] = & gt; bathroom backfilling how can I convert this one-dimensional array to a two-dimensional array based on the key-name correlation? Thank you.
Thank you! My one-dimensional array is as follows

PHP code

  ? Array ([xm1] => artificial new pipeline well [dj1] => 300 [sl1] => 100 [zj1] => 30000 [xm2] => toilet backfilling [dj2] => 100 [sl2] => [zj2] => [xm3] => TV background wall [dj3] => 300 [sl3] => [zj3] => [xm4] => living room wine cabinet TV background wine cabinet [dj4] => 100 [sl4] => [zj4] => [xm5] => door-to-door shoe cabinet decoration (activity to send shoe cabinets) [dj5] => 130 [sl5] => [zj5] => [xm6] => bookcase partition (including static cotton interlayer) [dj6] => 200 [sl6] => [zj6] => [xm8] => kitchen mobile door head storage cabinet [dj8] => 200 [sl8] => [zj8] => [xm9] => children's room wardrobe partition (including static cotton interlayer) [dj9] => 100 [sl9] => [zj9] => [xm10] => kitchen cabinets [dj10] => 200 [sl10] => [zj10] => [xm11] => bathroom sink [dj11] => 300 [sl11] => [zj11] => [xm12] => living room, dining room, aisle, gypsum board ceiling [dj12] => 350 [sl12] => [zj12] => [xm13] => bathroom and kitchen integrated ceiling [dj13] => 250 [sl13] => [zj13] => [xm14] => Top and wall dual-fly powder latex paint [dj14] => 200 [sl14] => [zj14] => [xm15] => kitchen, laundry, and bathroom anti-skid floor tiles [dj15] => 120 [sl15] => [zj15] => [xm16] => 300*450 wall tiles [dj16] => 200 [sl16] => [zj16] => [xm17] => window stone laying [dj17] => 200 [sl17] => [zj17] => [xm18] => door Stone [dj18] => 400 [sl18] => [zj18] => [xm19] => Anti-theft window [dj19] => 400 [sl19] => [zj19] => [xm20] => Study door cover [dj20] => 30 [sl20] => [zj20] => [xm21] => bathroom laundry door cover [dj21] => 60 [sl21] => [zj21] => [xm22] => ground and Wall Waterproofing and moisture-proof processing [dj22] => 70 [sl22] => [zj22] => [xm23] => water and circuit transformation [dj23] => 400 [sl23] => [zj23] => [xm24] => finished cleaning service [dj24] => 150 [sl24] => [zj24] => [xm25] => finished product protection fee [dj25] => 200 [sl25] => [zj25] => [xm26] => material shipping [dj26] => 5 [sl26] => [zj26] => [xm27] => junk clear freight [dj27] => 5 [sl27] => [zj27] => [xm28] => kitchen tiles (off discount) [dj28] => 120 [sl28] => [zj28] => [xm29] => kitchen wall tiles (off discount) [dj29] => 140 [sl29] => [zj29] => [xm30] => toilet floor tiles (off discount) [dj30] => 100 [sl30] => [zj30] => [xm31] => toilet wall tiles (off discount) [dj31] => 80 [sl31] => [zj31] => [xm32] => laminate flooring (buy one get one free during activity) [dj32] => 170 [sl32] => [zj32] => [xm33] => bedroom mounting door [dj33] => 730 [sl33] => [zj33] => [xm34] => bathroom door [dj34] => 570 [sl34] => [zj34] => [xm35] => kitchen mobile door [dj35] => 300 [sl35] => [zj35] => [xm36] => wardrobe mobile door [dj36] => 300 [sl36] => [zj36] => [xm37] => kitchen and bathroom ceiling [dj37] => 260 [sl37] => [zj37] => [xm38] => window Stone, cupboard table Stone [dj38] => 260 [sl38] => [zj38] => [xm39] => door Stone [dj39] => 140 [sl39] => [zj39] =>)

I want to convert it to the following

PHP code

  Array ([0] => Array ([xm] => artificial new pipeline well [dj] => 300 [sl] => 100 [zj] => 30000 [1] => Array (......)))

------ Solution --------------------

PHP code

$ Res = array (); foreach ($ arr AS $ k => $ v) {$ res [substr ($ k, 2)-1] [substr ($ k, 0, 2)] = $ v ;} /* Array ([0] => Array ([xm] => artificial new pipeline well [dj] => 300 [sl] => 100 [zj] => 30000) [1] => Array ([xm] => bathroom backfilling [dj] => 100 [sl] => [zj] => )*/