3v4l.org

run code in 300+ PHP versions simultaneously
<?php $l = 'abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-'; $x=0; for ($r=16;$x<$r;$x++) { substr($l,mt_rand(0,strlen($l)-1),1); }
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 = 4
Branch analysis from position: 18
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
2 jumps found. (Code = 44) Position 1 = 18, Position 2 = 4
Branch analysis from position: 18
Branch analysis from position: 4
filename:       /in/ERiTd
function name:  (null)
number of ops:  19
compiled vars:  !0 = $l, !1 = $x, !2 = $r
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-'
    5     1        ASSIGN                                                   !1, 0
    6     2        ASSIGN                                                   !2, 16
          3      > JMP                                                      ->16
    7     4    >   INIT_FCALL                                               'substr'
          5        SEND_VAR                                                 !0
          6        INIT_FCALL                                               'mt_rand'
          7        SEND_VAL                                                 0
          8        STRLEN                                           ~6      !0
          9        SUB                                              ~7      ~6, 1
         10        SEND_VAL                                                 ~7
         11        DO_ICALL                                         $8      
         12        SEND_VAR                                                 $8
         13        SEND_VAL                                                 1
         14        DO_ICALL                                                 
    6    15        PRE_INC                                                  !1
         16    >   IS_SMALLER                                               !1, !2
         17      > JMPNZ                                                    ~11, ->4
    8    18    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
149.25 ms | 1386 KiB | 17 Q