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<?php $bigbig = []; foreach (range(0, 100000) as $_) { $bigbig[] = new StdClass(); } $start = microtime(true); if ($bigbig) { echo "bigbig\n"; } echo microtime(true) - $start;
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 6, Position 2 = 12
Branch analysis from position: 6
2 jumps found. (Code = 78) Position 1 = 7, Position 2 = 12
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
Branch analysis from position: 12
2 jumps found. (Code = 43) Position 1 = 18, Position 2 = 19
Branch analysis from position: 18
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 19
Branch analysis from position: 12
filename:       /in/kH5bc
function name:  (null)
number of ops:  25
compiled vars:  !0 = $bigbig, !1 = $_, !2 = $start
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        INIT_FCALL                                               'range'
          2        SEND_VAL                                                 0
          3        SEND_VAL                                                 100000
          4        DO_ICALL                                         $4      
          5      > FE_RESET_R                                       $5      $4, ->12
          6    > > FE_FETCH_R                                               $5, !1, ->12
    5     7    >   NEW                                              $7      'StdClass'
          8        DO_FCALL                                      0          
          9        ASSIGN_DIM                                               !0
         10        OP_DATA                                                  $7
    4    11      > JMP                                                      ->6
         12    >   FE_FREE                                                  $5
    8    13        INIT_FCALL                                               'microtime'
         14        SEND_VAL                                                 <true>
         15        DO_ICALL                                         $9      
         16        ASSIGN                                                   !2, $9
    9    17      > JMPZ                                                     !0, ->19
   10    18    >   ECHO                                                     'bigbig%0A'
   12    19    >   INIT_FCALL                                               'microtime'
         20        SEND_VAL                                                 <true>
         21        DO_ICALL                                         $11     
         22        SUB                                              ~12     $11, !2
         23        ECHO                                                     ~12
         24      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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