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<?php $d = " select 'a' as `áčko` "; preg_match("~^\s*(SELECT|INSERT|UPDATE|DELETE)\s+~i", $d, $m); var_dump($m );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/6UdLl
function name:  (null)
number of ops:  10
compiled vars:  !0 = $d, !1 = $m
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '+select+%27a%27+as+%60%C3%A1%C4%8Dko%60+'
    4     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%7E%5E%5Cs%2A%28SELECT%7CINSERT%7CUPDATE%7CDELETE%29%5Cs%2B%7Ei'
          3        SEND_VAR                                                 !0
          4        SEND_REF                                                 !1
          5        DO_ICALL                                                 
    5     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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