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<?php function nums() { $ary = [24,25,26,27,28,29,30,31,32]; for($x = 0, $max = count($ary); $x < $max; $x += 2) { $cmd = (yield $ary[$x]); // yield expr var_dump($cmd); if ($cmd == 'stop') { echo 'Stopping the generator ...',"\n"; return; } } echo "Generator ran its course and is closed","\n"; return; } $gen = nums(); foreach ($gen as $value) { echo "$value\n"; if ($value == 28) { // don't let it get to 32 $gen->send('stop'); } }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 4, Position 2 = 14
Branch analysis from position: 4
2 jumps found. (Code = 78) Position 1 = 5, Position 2 = 14
Branch analysis from position: 5
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 13
Branch analysis from position: 10
1 jumps found. (Code = 42) Position 1 = 4
Branch analysis from position: 4
Branch analysis from position: 13
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 14
filename:       /in/dq3t9
function name:  (null)
number of ops:  16
compiled vars:  !0 = $gen, !1 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   17     0  E >   INIT_FCALL                                               'nums'
          1        DO_FCALL                                      0  $2      
          2        ASSIGN                                                   !0, $2
   19     3      > FE_RESET_R                                       $4      !0, ->14
          4    > > FE_FETCH_R                                               $4, !1, ->14
   20     5    >   NOP                                                      
          6        FAST_CONCAT                                      ~5      !1, '%0A'
          7        ECHO                                                     ~5
   21     8        IS_EQUAL                                                 !1, 28
          9      > JMPZ                                                     ~6, ->13
   22    10    >   INIT_METHOD_CALL                                         !0, 'send'
         11        SEND_VAL_EX                                              'stop'
         12        DO_FCALL                                      0          
   19    13    > > JMP                                                      ->4
         14    >   FE_FREE                                                  $4
   24    15      > RETURN                                                   1

Function nums:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 18
Branch analysis from position: 18
2 jumps found. (Code = 44) Position 1 = 20, Position 2 = 6
Branch analysis from position: 20
1 jumps found. (Code = 161) Position 1 = -2
Branch analysis from position: 6
2 jumps found. (Code = 43) Position 1 = 14, Position 2 = 17
Branch analysis from position: 14
1 jumps found. (Code = 161) Position 1 = -2
Branch analysis from position: 17
2 jumps found. (Code = 44) Position 1 = 20, Position 2 = 6
Branch analysis from position: 20
Branch analysis from position: 6
filename:       /in/dq3t9
function name:  nums
number of ops:  24
compiled vars:  !0 = $ary, !1 = $x, !2 = $max, !3 = $cmd
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   GENERATOR_CREATE                                         
    3     1        ASSIGN                                                   !0, <array>
    5     2        ASSIGN                                                   !1, 0
          3        COUNT                                            ~6      !0
          4        ASSIGN                                                   !2, ~6
          5      > JMP                                                      ->18
    6     6    >   FETCH_DIM_R                                      ~8      !0, !1
          7        YIELD                                            $9      ~8
          8        ASSIGN                                                   !3, $9
    7     9        INIT_FCALL                                               'var_dump'
         10        SEND_VAR                                                 !3
         11        DO_ICALL                                                 
    8    12        IS_EQUAL                                                 !3, 'stop'
         13      > JMPZ                                                     ~12, ->17
    9    14    >   ECHO                                                     'Stopping+the+generator+...'
         15        ECHO                                                     '%0A'
   10    16      > GENERATOR_RETURN                                         
    5    17    >   ASSIGN_OP                                     1          !1, 2
         18    >   IS_SMALLER                                               !1, !2
         19      > JMPNZ                                                    ~14, ->6
   13    20    >   ECHO                                                     'Generator+ran+its+course+and+is+closed'
         21        ECHO                                                     '%0A'
   14    22      > GENERATOR_RETURN                                         
   15    23*     > GENERATOR_RETURN                                         

End of function nums

Generated using Vulcan Logic Dumper, using php 8.0.0


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