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<?php $pattern = '~(?:(?<=<p class="code">\v)|(?!\A)\G\v*)^((?>(?!</p>)\V)*)(\v)~m'; $str = ' <p>hello see my css below</p> <p class="code"> h1 { font-size:10px font-color:#FFF } h2 { font-size:10px font-color:#FFF } </p> <p>123</p> <p class="code"> 1 2 3 </p>'; $str = preg_replace($pattern, '<code>\1</code>\2', $str); echo $str;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/uuagr
function name:  (null)
number of ops:  10
compiled vars:  !0 = $pattern, !1 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%7E%28%3F%3A%28%3F%3C%3D%3Cp+class%3D%22code%22%3E%5Cv%29%7C%28%3F%21%5CA%29%5CG%5Cv%2A%29%5E%28%28%3F%3E%28%3F%21%3C%2Fp%3E%29%5CV%29%2A%29%28%5Cv%29%7Em'
    4     1        ASSIGN                                                   !1, '%0A%3Cp%3Ehello+see+my+css+below%3C%2Fp%3E%0A%3Cp+class%3D%22code%22%3E%0Ah1+%7B+%0Afont-size%3A10px%0Afont-color%3A%23FFF%0A%7D%0A%0Ah2+%7B+%0Afont-size%3A10px%0Afont-color%3A%23FFF%0A%7D%0A%3C%2Fp%3E%0A%0A%3Cp%3E123%3C%2Fp%3E%0A%3Cp+class%3D%22code%22%3E%0A1%0A2%0A3%0A%3C%2Fp%3E'
   25     2        INIT_FCALL                                               'preg_replace'
          3        SEND_VAR                                                 !0
          4        SEND_VAL                                                 '%3Ccode%3E%5C1%3C%2Fcode%3E%5C2'
          5        SEND_VAR                                                 !1
          6        DO_ICALL                                         $4      
          7        ASSIGN                                                   !1, $4
   27     8        ECHO                                                     !1
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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