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<?php $foo = preg_match('/^([0-9]+)(\D+.*$|$)/','211', $m); var_dump($m);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/WdMhE
function name:  (null)
number of ops:  10
compiled vars:  !0 = $foo, !1 = $m
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'preg_match'
          1        SEND_VAL                                                 '%2F%5E%28%5B0-9%5D%2B%29%28%5CD%2B.%2A%24%7C%24%29%2F'
          2        SEND_VAL                                                 '211'
          3        SEND_REF                                                 !1
          4        DO_ICALL                                         $2      
          5        ASSIGN                                                   !0, $2
    3     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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