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<?php $string='Foo, Bar, Test, X, Y, Z,'; $pos=0; $count=0; while(($pos = strpos($string, 'Bar',$pos)) !== FALSE){ $count++; $pos++; // This en } echo $count;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
2 jumps found. (Code = 44) Position 1 = 14, Position 2 = 4
Branch analysis from position: 14
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
2 jumps found. (Code = 44) Position 1 = 14, Position 2 = 4
Branch analysis from position: 14
Branch analysis from position: 4
filename:       /in/Z0EC7
function name:  (null)
number of ops:  16
compiled vars:  !0 = $string, !1 = $pos, !2 = $count
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'Foo%2C+Bar%2C+Test%2C+X%2C+Y%2C+Z%2C'
    3     1        ASSIGN                                                   !1, 0
    4     2        ASSIGN                                                   !2, 0
    5     3      > JMP                                                      ->6
    6     4    >   PRE_INC                                                  !2
    7     5        PRE_INC                                                  !1
    5     6    >   INIT_FCALL                                               'strpos'
          7        SEND_VAR                                                 !0
          8        SEND_VAL                                                 'Bar'
          9        SEND_VAR                                                 !1
         10        DO_ICALL                                         $8      
         11        ASSIGN                                           ~9      !1, $8
         12        TYPE_CHECK                                  1018          ~9
         13      > JMPNZ                                                    ~10, ->4
   10    14    >   ECHO                                                     !2
         15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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