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<?php $a = []; for ($i = 0; $i < 10000; ++$i) $a[$i * 2] = $i; var_dump(memory_get_usage());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 7
Branch analysis from position: 7
2 jumps found. (Code = 44) Position 1 = 9, Position 2 = 3
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 3
2 jumps found. (Code = 44) Position 1 = 9, Position 2 = 3
Branch analysis from position: 9
Branch analysis from position: 3
filename:       /in/JceSe
function name:  (null)
number of ops:  15
compiled vars:  !0 = $a, !1 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1        ASSIGN                                                   !1, 0
          2      > JMP                                                      ->7
          3    >   MUL                                              ~4      !1, 2
          4        ASSIGN_DIM                                               !0, ~4
          5        OP_DATA                                                  !1
          6        PRE_INC                                                  !1
          7    >   IS_SMALLER                                               !1, 10000
          8      > JMPNZ                                                    ~7, ->3
    4     9    >   INIT_FCALL                                               'var_dump'
         10        INIT_FCALL                                               'memory_get_usage'
         11        DO_ICALL                                         $8      
         12        SEND_VAR                                                 $8
         13        DO_ICALL                                                 
         14      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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138.13 ms | 1399 KiB | 17 Q