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<?php $x=''; $y= sprintf("%01\$.2f",$x); echo !!$y;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/qPpM1
function name:  (null)
number of ops:  10
compiled vars:  !0 = $x, !1 = $y
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, ''
    3     1        INIT_FCALL                                               'sprintf'
          2        SEND_VAL                                                 '%2501%24.2f'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $3      
          5        ASSIGN                                                   !1, $3
    4     6        BOOL_NOT                                         ~5      !1
          7        BOOL_NOT                                         ~6      ~5
          8        ECHO                                                     ~6
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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