php adding values in same foreach - php

Question

I am trying to add up all the books sold quantities, for example Book A sold 55, Book B sold 9, Book A 65, Book B sold 20. Book A = 120 and Book B = 29.
And as you can see i need to add up the numeral values per book. I just not sure how to add up values.
My array looks like this:
Array
(
[Visual Flight Guide] => Array
(
[0] => 1
[30] => 5
[39] => 3
[69] => 6
[118] => 10
)
[Flight Radio for Pilots VFR Operations] => Array
(
[1] => 1
[5] => 1
[17] => 5
[46] => 1
[53] => 5
[120] => 4
)
[ATC Pilots Logbook] => Array
(
[2] => 1
[3] => 1
[20] => 30
[27] => 26
[28] => 1
[40] => 8
[54] => 52
[66] => 30
[78] => 52
[121] => 30
)
[Aerobatics Principles and Practice] => Array
(
[4] => 1
)
[Instrument Flight Guide] => Array
(
[6] => 5
[18] => 1
[32] => 1
[41] => 6
[56] => 5
[70] => 6
[108] => 8
[130] => 5
)
[Command Instrument Rating] => Array
(
[7] => 10
[16] => 1
[35] => 1
[57] => 5
[67] => 6
[93] => 3
[113] => 2
)
[Student Pilot Kit] => Array
(
[8] => 5
[13] => 4
[44] => 1
[51] => 9
[61] => 12
[80] => 1
[102] => 5
[117] => 2
[134] => 1
)
[Basic Aeronautical Knowledge] => Array
(
[9] => 10
[29] => 5
[52] => 5
[63] => 6
[79] => 20
[94] => 1
[106] => 1
[110] => 12
[119] => 4
)
[Human Factors] => Array
(
[10] => 10
[22] => 1
[45] => 1
[83] => 6
[122] => 3
)
[ATC Rotating Plotter] => Array
(
[11] => 4
)
[ATC Protractor] => Array
(
[12] => 5
[42] => 12
[60] => 10
[74] => 30
[81] => 25
)
[180NM Scale Rule] => Array
(
[14] => 4
[43] => 12
[73] => 30
[82] => 25
)
[Seven Volume PPLCPL Kit] => Array
(
[15] => 4
[19] => 1
[31] => 1
[62] => 6
[77] => 1
[100] => 3
[128] => 3
)
[Fake Item] => Array
(
[21] => 1
)
[Flight Rules and Air Law] => Array
(
[23] => 1
[87] => 7
[97] => 1
[127] => 5
)
[Aircraft Operation Performance and Planning] => Array
(
[24] => 1
[88] => 4
[95] => 1
[112] => 6
[133] => 1
)
[Aerodynamics] => Array
(
[25] => 1
[91] => 1
[101] => 1
[104] => 1
[124] => 3
)
[Aircraft General Knowledge] => Array
(
[26] => 1
[84] => 5
[92] => 1
[99] => 1
[105] => 1
[123] => 3
)
[Human Being Pilot] => Array
(
[33] => 1
[68] => 3
[109] => 16
)
[Flight Rules and Air Law for the Air Transport Pilot] => Array
(
[34] => 1
[55] => 3
[65] => 3
[89] => 1
[129] => 2
)
[Aerodynamics Engines Airframe Systems for the Air Transport Pilot] => Array
(
[36] => 1
)
[Aeroplane Performance Planning Loading for the Air Transport Pilot] => Array
(
[37] => 1
[98] => 1
)
[Avionics and Flight Management Systems for the Air Transport Pilot] => Array
(
[38] => 1
)
[The Flying Training Manual] => Array
(
[47] => 1
[48] => 1
[103] => 6
[107] => 10
[116] => 2
)
[In Safe Hands] => Array
(
[49] => 3
)
[Helicopter Trial Instructional Flight] => Array
(
[50] => 3
)
[Flight at Lower Levels Safety in the Circuit] => Array
(
[58] => 3
)
[Night Flight] => Array
(
[59] => 3
[75] => 4
[114] => 1
[132] => 1
)
[Meteorology] => Array
(
[64] => 3
[85] => 7
[111] => 6
[125] => 3
)
[80NM Scale Rule] => Array
(
[71] => 10
)
[120NM Scale Rule] => Array
(
[72] => 10
)
[MultiEngine Piston] => Array
(
[76] => 2
)
[Navigation] => Array
(
[86] => 5
[96] => 2
[126] => 3
)
[Three Points Flying a Tailwheel Aircraft] => Array
(
[90] => 1
)
[Pilots Index] => Array
(
[115] => 1
[131] => 5
)
)
I have tried this:
$stock_taken = array();
$i = 0;
foreach($stock_take as $stock){
$stock_taken[$stock->name][$i] = $stock->qty;
$i++;
}

Answer 1

You have to use array_sum() for sum of values in array.so try this
//$array = your array
$sum = array();
foreach($array as $key=>$stock)
{
$sum[$key]=array_sum($stock);
}
foreach($sum as $key=>$values)
{
echo "sum of book ".$key." sold is ".$values."\n";
}
Demo