3v4l.org

run code in 300+ PHP versions simultaneously
<?php 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/umX8Q
function name:  (null)
number of ops:  50
compiled vars:  !0 = $singleQuotedStringCode, !1 = $doubleQuotedStringCode, !2 = $startTime, !3 = $endTime
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   DECLARE_CONST                                            'NUM', 10000000
    4     1        INIT_FCALL                                               'str_repeat'
          2        SEND_VAL                                                 'x'
          3        FETCH_CONSTANT                                   ~4      'NUM'
          4        SEND_VAL                                                 ~4
          5        DO_ICALL                                         $5      
          6        CONCAT                                           ~6      '%3C%3Fphp+%27', $5
          7        CONCAT                                           ~7      ~6, '%27%3B'
          8        ASSIGN                                                   !0, ~7
    5     9        INIT_FCALL                                               'str_repeat'
         10        SEND_VAL                                                 'x'
         11        FETCH_CONSTANT                                   ~9      'NUM'
         12        SEND_VAL                                                 ~9
         13        DO_ICALL                                         $10     
         14        CONCAT                                           ~11     '%3C%3Fphp+%22', $10
         15        CONCAT                                           ~12     ~11, '%22%3B'
         16        ASSIGN                                                   !1, ~12
    7    17        INIT_FCALL                                               'microtime'
         18        SEND_VAL                                                 <true>
         19        DO_ICALL                                         $14     
         20        ASSIGN                                                   !2, $14
    8    21        INIT_FCALL                                               'token_get_all'
         22        SEND_VAR                                                 !0
         23        DO_ICALL                                                 
    9    24        INIT_FCALL                                               'microtime'
         25        SEND_VAL                                                 <true>
         26        DO_ICALL                                         $17     
         27        ASSIGN                                                   !3, $17
   11    28        ECHO                                                     'Single+quotes%3A+'
         29        SUB                                              ~19     !3, !2
         30        ECHO                                                     ~19
         31        ECHO                                                     '+seconds'
         32        ECHO                                                     '%0A'
   13    33        INIT_FCALL                                               'microtime'
         34        SEND_VAL                                                 <true>
         35        DO_ICALL                                         $20     
         36        ASSIGN                                                   !2, $20
   14    37        INIT_FCALL                                               'token_get_all'
         38        SEND_VAR                                                 !1
         39        DO_ICALL                                                 
   15    40        INIT_FCALL                                               'microtime'
         41        SEND_VAL                                                 <true>
         42        DO_ICALL                                         $23     
         43        ASSIGN                                                   !3, $23
   17    44        ECHO                                                     'Double+quotes%3A+'
         45        SUB                                              ~25     !3, !2
         46        ECHO                                                     ~25
         47        ECHO                                                     '+seconds'
         48        ECHO                                                     '%0A'
         49      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
148.62 ms | 1400 KiB | 19 Q