3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = ''; for ($i = 0; $i < 4; $i++) { $string .= "Happy birthday "; if ($i != 2) { $string .= "to you!\n"; } else { $string .= "dear %s!\n"; } } print sprintf($string, 'name');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
2 jumps found. (Code = 44) Position 1 = 12, Position 2 = 3
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 6, Position 2 = 8
Branch analysis from position: 6
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
2 jumps found. (Code = 44) Position 1 = 12, Position 2 = 3
Branch analysis from position: 12
Branch analysis from position: 3
Branch analysis from position: 8
2 jumps found. (Code = 44) Position 1 = 12, Position 2 = 3
Branch analysis from position: 12
Branch analysis from position: 3
filename:       /in/DoWac
function name:  (null)
number of ops:  18
compiled vars:  !0 = $string, !1 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, ''
    3     1        ASSIGN                                                   !1, 0
          2      > JMP                                                      ->10
    4     3    >   ASSIGN_OP                                     8          !0, 'Happy+birthday+'
    5     4        IS_NOT_EQUAL                                             !1, 2
          5      > JMPZ                                                     ~5, ->8
    6     6    >   ASSIGN_OP                                     8          !0, 'to+you%21%0A'
          7      > JMP                                                      ->9
    8     8    >   ASSIGN_OP                                     8          !0, 'dear+%25s%21%0A'
    3     9    >   PRE_INC                                                  !1
         10    >   IS_SMALLER                                               !1, 4
         11      > JMPNZ                                                    ~9, ->3
   11    12    >   INIT_FCALL                                               'sprintf'
         13        SEND_VAR                                                 !0
         14        SEND_VAL                                                 'name'
         15        DO_ICALL                                         $10     
         16        ECHO                                                     $10
         17      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
151.88 ms | 1395 KiB | 15 Q