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<?php $x = preg_match('/^\d+/', 'xxxxxxx1'); echo $x;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Y0n5P
function name:  (null)
number of ops:  7
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'preg_match'
          1        SEND_VAL                                                 '%2F%5E%5Cd%2B%2F'
          2        SEND_VAL                                                 'xxxxxxx1'
          3        DO_ICALL                                         $1      
          4        ASSIGN                                                   !0, $1
    3     5        ECHO                                                     !0
          6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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