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<?php $a = '/s/e/r/e/r/server.php'; $b = str_replace('server.php','test.php', $a); print_r($b);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/EGPH3
function name:  (null)
number of ops:  11
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '%2Fs%2Fe%2Fr%2Fe%2Fr%2Fserver.php'
    3     1        INIT_FCALL                                               'str_replace'
          2        SEND_VAL                                                 'server.php'
          3        SEND_VAL                                                 'test.php'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $3      
          6        ASSIGN                                                   !1, $3
    4     7        INIT_FCALL                                               'print_r'
          8        SEND_VAR                                                 !1
          9        DO_ICALL                                                 
         10      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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