3v4l.org

run code in 300+ PHP versions simultaneously
<?php for($i=1;$i<=9;$i++) for($j=1;$j<=$i;$j++) echo "$i"."$j"; ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 12
Branch analysis from position: 12
2 jumps found. (Code = 44) Position 1 = 14, Position 2 = 2
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 2
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
2 jumps found. (Code = 44) Position 1 = 11, Position 2 = 4
Branch analysis from position: 11
2 jumps found. (Code = 44) Position 1 = 14, Position 2 = 2
Branch analysis from position: 14
Branch analysis from position: 2
Branch analysis from position: 4
2 jumps found. (Code = 44) Position 1 = 11, Position 2 = 4
Branch analysis from position: 11
Branch analysis from position: 4
filename:       /in/AOAW3
function name:  (null)
number of ops:  15
compiled vars:  !0 = $i, !1 = $j
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 1
          1      > JMP                                                      ->12
    3     2    >   ASSIGN                                                   !1, 1
          3      > JMP                                                      ->9
    4     4    >   CAST                                          6  ~4      !0
          5        CAST                                          6  ~5      !1
          6        CONCAT                                           ~6      ~4, ~5
          7        ECHO                                                     ~6
    3     8        PRE_INC                                                  !1
          9    >   IS_SMALLER_OR_EQUAL                                      !1, !0
         10      > JMPNZ                                                    ~8, ->4
    2    11    >   PRE_INC                                                  !0
         12    >   IS_SMALLER_OR_EQUAL                                      !0, 9
         13      > JMPNZ                                                    ~10, ->2
    6    14    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
164.79 ms | 1394 KiB | 13 Q