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<?php $str1 = '<table><tr><td>1</td><td>2</td></tr></table>'; $str2 = '<tr><td>1</td><td>2</td></tr>'; var_dump(strpos($str1, $str2));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/ZZjW3
function name:  (null)
number of ops:  10
compiled vars:  !0 = $str1, !1 = $str2
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%3Ctable%3E%3Ctr%3E%3Ctd%3E1%3C%2Ftd%3E%3Ctd%3E2%3C%2Ftd%3E%3C%2Ftr%3E%3C%2Ftable%3E'
    3     1        ASSIGN                                                   !1, '%3Ctr%3E%3Ctd%3E1%3C%2Ftd%3E%3Ctd%3E2%3C%2Ftd%3E%3C%2Ftr%3E'
    4     2        INIT_FCALL                                               'var_dump'
          3        INIT_FCALL                                               'strpos'
          4        SEND_VAR                                                 !0
          5        SEND_VAR                                                 !1
          6        DO_ICALL                                         $4      
          7        SEND_VAR                                                 $4
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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