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<?php $search = 'pink'; $test = array( 'name_01' => array('yellow', 'red', 'blue', 'black', 'white', 'purple'), 'name_02' => array('red', 'blue', 'white', 'green'), 'name_03' => array('blue', 'pink', 'purple', 'blue'), 'name_04' => array('white', 'black', 'red'), 'name_05' => array('yellow', 'white', 'pink', 'black') ); $keys = []; foreach($test as $key=>$arr){ if(in_array($search,$arr)){ $keys[] = $key; } } print_r($keys);
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 11
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 11
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 10
Branch analysis from position: 8
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 10
Branch analysis from position: 11
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 11
filename:       /in/8e0sj
function name:  (null)
number of ops:  16
compiled vars:  !0 = $search, !1 = $test, !2 = $keys, !3 = $arr, !4 = $key
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, 'pink'
    5     1        ASSIGN                                                       !1, <array>
   13     2        ASSIGN                                                       !2, <array>
   14     3      > FE_RESET_R                                           $8      !1, ->11
          4    > > FE_FETCH_R                                           ~9      $8, !3, ->11
          5    >   ASSIGN                                                       !4, ~9
   15     6        FRAMELESS_ICALL_2                in_array            ~11     !0, !3
          7      > JMPZ                                                         ~11, ->10
   16     8    >   ASSIGN_DIM                                                   !2
          9        OP_DATA                                                      !4
   14    10    > > JMP                                                          ->4
         11    >   FE_FREE                                                      $8
   19    12        INIT_FCALL                                                   'print_r'
         13        SEND_VAR                                                     !2
         14        DO_ICALL                                                     
         15      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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