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<?php $start = microtime(true); for ($i = 0; $i < 1000000; $i++) { $v = uniqid(); } $elapsed = microtime(true) - $start; echo "uniqid => $elapsed\n"; $start = microtime(true); for ($i = 0; $i < 1000000; $i++) { $v = microtime(); } $elapsed = microtime(true) - $start; echo "microtime => $elapsed\n";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
2 jumps found. (Code = 44) Position 1 = 12, Position 2 = 6
Branch analysis from position: 12
1 jumps found. (Code = 42) Position 1 = 31
Branch analysis from position: 31
2 jumps found. (Code = 44) Position 1 = 33, Position 2 = 27
Branch analysis from position: 33
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 27
2 jumps found. (Code = 44) Position 1 = 33, Position 2 = 27
Branch analysis from position: 33
Branch analysis from position: 27
Branch analysis from position: 6
2 jumps found. (Code = 44) Position 1 = 12, Position 2 = 6
Branch analysis from position: 12
Branch analysis from position: 6
filename:       /in/b7kYq
function name:  (null)
number of ops:  43
compiled vars:  !0 = $start, !1 = $i, !2 = $v, !3 = $elapsed
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, 0
          5      > JMP                                                      ->10
    4     6    >   INIT_FCALL                                               'uniqid'
          7        DO_ICALL                                         $7      
          8        ASSIGN                                                   !2, $7
    3     9        PRE_INC                                                  !1
         10    >   IS_SMALLER                                               !1, 1000000
         11      > JMPNZ                                                    ~10, ->6
    6    12    >   INIT_FCALL                                               'microtime'
         13        SEND_VAL                                                 <true>
         14        DO_ICALL                                         $11     
         15        SUB                                              ~12     $11, !0
         16        ASSIGN                                                   !3, ~12
    7    17        ROPE_INIT                                     3  ~15     'uniqid+%3D%3E+'
         18        ROPE_ADD                                      1  ~15     ~15, !3
         19        ROPE_END                                      2  ~14     ~15, '%0A'
         20        ECHO                                                     ~14
    9    21        INIT_FCALL                                               'microtime'
         22        SEND_VAL                                                 <true>
         23        DO_ICALL                                         $17     
         24        ASSIGN                                                   !0, $17
   10    25        ASSIGN                                                   !1, 0
         26      > JMP                                                      ->31
   11    27    >   INIT_FCALL                                               'microtime'
         28        DO_ICALL                                         $20     
         29        ASSIGN                                                   !2, $20
   10    30        PRE_INC                                                  !1
         31    >   IS_SMALLER                                               !1, 1000000
         32      > JMPNZ                                                    ~23, ->27
   13    33    >   INIT_FCALL                                               'microtime'
         34        SEND_VAL                                                 <true>
         35        DO_ICALL                                         $24     
         36        SUB                                              ~25     $24, !0
         37        ASSIGN                                                   !3, ~25
   14    38        ROPE_INIT                                     3  ~28     'microtime+%3D%3E+'
         39        ROPE_ADD                                      1  ~28     ~28, !3
         40        ROPE_END                                      2  ~27     ~28, '%0A'
         41        ECHO                                                     ~27
         42      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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