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<?php $x = '0631'; $str = str_pad(((int)$x) + 1, 4, '0', STR_PAD_LEFT); var_dump($str);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/XkjDj
function name:  (null)
number of ops:  14
compiled vars:  !0 = $x, !1 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '0631'
    4     1        INIT_FCALL                                               'str_pad'
          2        CAST                                          4  ~3      !0
          3        ADD                                              ~4      ~3, 1
          4        SEND_VAL                                                 ~4
          5        SEND_VAL                                                 4
          6        SEND_VAL                                                 '0'
          7        SEND_VAL                                                 0
          8        DO_ICALL                                         $5      
          9        ASSIGN                                                   !1, $5
    7    10        INIT_FCALL                                               'var_dump'
         11        SEND_VAR                                                 !1
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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