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<?php $startTime = microtime(true); $result = ""; for($i = 0; $i < 50000000; $i++) $result = 'salut'; $endTime = microtime(true); echo 'Single quotes: ', $endTime - $startTime, ' seconds', "\n"; $startTime = microtime(true); $result = ""; for($i = 0; $i < 50000000; $i++) $result = "salut"; $endTime = microtime(true); echo 'Double quotes: ', $endTime - $startTime, ' seconds', "\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 9
Branch analysis from position: 9
2 jumps found. (Code = 44) Position 1 = 11, Position 2 = 7
Branch analysis from position: 11
1 jumps found. (Code = 42) Position 1 = 29
Branch analysis from position: 29
2 jumps found. (Code = 44) Position 1 = 31, Position 2 = 27
Branch analysis from position: 31
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 27
2 jumps found. (Code = 44) Position 1 = 31, Position 2 = 27
Branch analysis from position: 31
Branch analysis from position: 27
Branch analysis from position: 7
2 jumps found. (Code = 44) Position 1 = 11, Position 2 = 7
Branch analysis from position: 11
Branch analysis from position: 7
filename:       /in/BtoDq
function name:  (null)
number of ops:  41
compiled vars:  !0 = $startTime, !1 = $result, !2 = $i, !3 = $endTime
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'microtime'
          1        SEND_VAL                                                 <true>
          2        DO_ICALL                                         $4      
          3        ASSIGN                                                   !0, $4
    3     4        ASSIGN                                                   !1, ''
    4     5        ASSIGN                                                   !2, 0
          6      > JMP                                                      ->9
    5     7    >   ASSIGN                                                   !1, 'salut'
    4     8        PRE_INC                                                  !2
          9    >   IS_SMALLER                                               !2, 50000000
         10      > JMPNZ                                                    ~10, ->7
    6    11    >   INIT_FCALL                                               'microtime'
         12        SEND_VAL                                                 <true>
         13        DO_ICALL                                         $11     
         14        ASSIGN                                                   !3, $11
    8    15        ECHO                                                     'Single+quotes%3A+'
         16        SUB                                              ~13     !3, !0
         17        ECHO                                                     ~13
         18        ECHO                                                     '+seconds'
         19        ECHO                                                     '%0A'
   10    20        INIT_FCALL                                               'microtime'
         21        SEND_VAL                                                 <true>
         22        DO_ICALL                                         $14     
         23        ASSIGN                                                   !0, $14
   11    24        ASSIGN                                                   !1, ''
   12    25        ASSIGN                                                   !2, 0
         26      > JMP                                                      ->29
   13    27    >   ASSIGN                                                   !1, 'salut'
   12    28        PRE_INC                                                  !2
         29    >   IS_SMALLER                                               !2, 50000000
         30      > JMPNZ                                                    ~20, ->27
   14    31    >   INIT_FCALL                                               'microtime'
         32        SEND_VAL                                                 <true>
         33        DO_ICALL                                         $21     
         34        ASSIGN                                                   !3, $21
   16    35        ECHO                                                     'Double+quotes%3A+'
         36        SUB                                              ~23     !3, !0
         37        ECHO                                                     ~23
         38        ECHO                                                     '+seconds'
         39        ECHO                                                     '%0A'
         40      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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145.76 ms | 1400 KiB | 15 Q