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<?php $string = "The quick brown fox jumped over the lazy dog.\n"; $patterns = array(); $patterns[0] = '/quick/'; $patterns[1] = '/brown/'; $patterns[2] = '/fox/'; $replacements = array(); $replacements[2] = 'bear'; var_dump($replacements); $replacements[1] = 'black'; var_dump($replacements); $replacements[0] = 'slow'; var_dump($replacements); echo preg_replace($patterns, $replacements, $string); $replacements = array(); $replacements[0] = 'slow'; $replacements[1] = 'black'; $replacements[2] = 'bear'; echo preg_replace($patterns, $replacements, $string);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kkrdU
function name:  (null)
number of ops:  44
compiled vars:  !0 = $string, !1 = $patterns, !2 = $replacements
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'The+quick+brown+fox+jumped+over+the+lazy+dog.%0A'
    4     1        ASSIGN                                                   !1, <array>
    5     2        ASSIGN_DIM                                               !1, 0
          3        OP_DATA                                                  '%2Fquick%2F'
    6     4        ASSIGN_DIM                                               !1, 1
          5        OP_DATA                                                  '%2Fbrown%2F'
    7     6        ASSIGN_DIM                                               !1, 2
          7        OP_DATA                                                  '%2Ffox%2F'
    8     8        ASSIGN                                                   !2, <array>
    9     9        ASSIGN_DIM                                               !2, 2
         10        OP_DATA                                                  'bear'
   10    11        INIT_FCALL                                               'var_dump'
         12        SEND_VAR                                                 !2
         13        DO_ICALL                                                 
   11    14        ASSIGN_DIM                                               !2, 1
         15        OP_DATA                                                  'black'
   12    16        INIT_FCALL                                               'var_dump'
         17        SEND_VAR                                                 !2
         18        DO_ICALL                                                 
   13    19        ASSIGN_DIM                                               !2, 0
         20        OP_DATA                                                  'slow'
   14    21        INIT_FCALL                                               'var_dump'
         22        SEND_VAR                                                 !2
         23        DO_ICALL                                                 
   15    24        INIT_FCALL                                               'preg_replace'
         25        SEND_VAR                                                 !1
         26        SEND_VAR                                                 !2
         27        SEND_VAR                                                 !0
         28        DO_ICALL                                         $15     
         29        ECHO                                                     $15
   18    30        ASSIGN                                                   !2, <array>
   19    31        ASSIGN_DIM                                               !2, 0
         32        OP_DATA                                                  'slow'
   20    33        ASSIGN_DIM                                               !2, 1
         34        OP_DATA                                                  'black'
   21    35        ASSIGN_DIM                                               !2, 2
         36        OP_DATA                                                  'bear'
   22    37        INIT_FCALL                                               'preg_replace'
         38        SEND_VAR                                                 !1
         39        SEND_VAR                                                 !2
         40        SEND_VAR                                                 !0
         41        DO_ICALL                                         $20     
         42        ECHO                                                     $20
         43      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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