3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i = 1; $i < 3; $i = $i + 1) { for ($j = 1; $j < 4; $j = $j + 1) { print "I: $i, J: $j\n"; } }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 16
Branch analysis from position: 16
2 jumps found. (Code = 44) Position 1 = 18, Position 2 = 2
Branch analysis from position: 18
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 2
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
2 jumps found. (Code = 44) Position 1 = 14, Position 2 = 4
Branch analysis from position: 14
2 jumps found. (Code = 44) Position 1 = 18, Position 2 = 2
Branch analysis from position: 18
Branch analysis from position: 2
Branch analysis from position: 4
2 jumps found. (Code = 44) Position 1 = 14, Position 2 = 4
Branch analysis from position: 14
Branch analysis from position: 4
filename:       /in/YZUHr
function name:  (null)
number of ops:  19
compiled vars:  !0 = $i, !1 = $j
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 1
          1      > JMP                                                      ->16
    3     2    >   ASSIGN                                                   !1, 1
          3      > JMP                                                      ->12
    4     4    >   ROPE_INIT                                     5  ~5      'I%3A+'
          5        ROPE_ADD                                      1  ~5      ~5, !0
          6        ROPE_ADD                                      2  ~5      ~5, '%2C+J%3A+'
          7        ROPE_ADD                                      3  ~5      ~5, !1
          8        ROPE_END                                      4  ~4      ~5, '%0A'
          9        ECHO                                                     ~4
    3    10        ADD                                              ~8      !1, 1
         11        ASSIGN                                                   !1, ~8
         12    >   IS_SMALLER                                               !1, 4
         13      > JMPNZ                                                    ~10, ->4
    2    14    >   ADD                                              ~11     !0, 1
         15        ASSIGN                                                   !0, ~11
         16    >   IS_SMALLER                                               !0, 3
         17      > JMPNZ                                                    ~13, ->2
    6    18    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
152.95 ms | 1398 KiB | 13 Q