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<?php echo '<pre>'; const NUM = 10000000; $singleQuotedStringCode = "<?php '" . str_repeat('x', NUM) . "';"; $doubleQuotedStringCode = '<?php "' . str_repeat('x', NUM) . '";'; $startTime = microtime(true); token_get_all($singleQuotedStringCode); $endTime = microtime(true); echo 'Single quotes: ', $endTime - $startTime, ' seconds', "\n"; $startTime = microtime(true); token_get_all($doubleQuotedStringCode); $endTime = microtime(true); echo 'Double quotes: ', $endTime - $startTime, ' seconds', "\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OXmvG
function name:  (null)
number of ops:  51
compiled vars:  !0 = $singleQuotedStringCode, !1 = $doubleQuotedStringCode, !2 = $startTime, !3 = $endTime
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ECHO                                                     '%3Cpre%3E'
    4     1        DECLARE_CONST                                            'NUM', 10000000
    6     2        INIT_FCALL                                               'str_repeat'
          3        SEND_VAL                                                 'x'
          4        FETCH_CONSTANT                                   ~4      'NUM'
          5        SEND_VAL                                                 ~4
          6        DO_ICALL                                         $5      
          7        CONCAT                                           ~6      '%3C%3Fphp+%27', $5
          8        CONCAT                                           ~7      ~6, '%27%3B'
          9        ASSIGN                                                   !0, ~7
    7    10        INIT_FCALL                                               'str_repeat'
         11        SEND_VAL                                                 'x'
         12        FETCH_CONSTANT                                   ~9      'NUM'
         13        SEND_VAL                                                 ~9
         14        DO_ICALL                                         $10     
         15        CONCAT                                           ~11     '%3C%3Fphp+%22', $10
         16        CONCAT                                           ~12     ~11, '%22%3B'
         17        ASSIGN                                                   !1, ~12
    9    18        INIT_FCALL                                               'microtime'
         19        SEND_VAL                                                 <true>
         20        DO_ICALL                                         $14     
         21        ASSIGN                                                   !2, $14
   10    22        INIT_FCALL                                               'token_get_all'
         23        SEND_VAR                                                 !0
         24        DO_ICALL                                                 
   11    25        INIT_FCALL                                               'microtime'
         26        SEND_VAL                                                 <true>
         27        DO_ICALL                                         $17     
         28        ASSIGN                                                   !3, $17
   13    29        ECHO                                                     'Single+quotes%3A+'
         30        SUB                                              ~19     !3, !2
         31        ECHO                                                     ~19
         32        ECHO                                                     '+seconds'
         33        ECHO                                                     '%0A'
   15    34        INIT_FCALL                                               'microtime'
         35        SEND_VAL                                                 <true>
         36        DO_ICALL                                         $20     
         37        ASSIGN                                                   !2, $20
   16    38        INIT_FCALL                                               'token_get_all'
         39        SEND_VAR                                                 !1
         40        DO_ICALL                                                 
   17    41        INIT_FCALL                                               'microtime'
         42        SEND_VAL                                                 <true>
         43        DO_ICALL                                         $23     
         44        ASSIGN                                                   !3, $23
   19    45        ECHO                                                     'Double+quotes%3A+'
         46        SUB                                              ~25     !3, !2
         47        ECHO                                                     ~25
         48        ECHO                                                     '+seconds'
         49        ECHO                                                     '%0A'
         50      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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