3v4l.org

run code in 500+ PHP versions simultaneously
<?php function report($name, $time) { static $last = null; printf("%-12s: %.8fms", $name, $time); if (null !== $last) { printf(", %.1f%%", (($time - $last)/$last)*100); } echo PHP_EOL; $last = $time; } $iterations = 100000; $a = str_repeat('a', 2<<8); $times = array( "direct" => 0, "static" => 0, "object" => 0 ); class Os { public static function strcmp($a) { strcmp($a, $a); } } class Om { public function strcmp($a) { strcmp($a, $a); } } $o = new Om(); for ($x=0; $x<$iterations; $x++) { $start = microtime(true); strcmp($a, $a); $end = microtime(true) - $start; $times["direct"]+= $end; $start = microtime(true); Os::strcmp($a); $end = microtime(true) - $start; $times["static"]+= $end; $start = microtime(true); $o->strcmp($a); $end = microtime(true) - $start; $times["object"]+= $end; } foreach ($times as $name => $time) { report($name, ($time/$iterations)*1000); }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 56
Branch analysis from position: 56
2 jumps found. (Code = 44) Position 1 = 58, Position 2 = 12
Branch analysis from position: 58
2 jumps found. (Code = 77) Position 1 = 59, Position 2 = 68
Branch analysis from position: 59
2 jumps found. (Code = 78) Position 1 = 60, Position 2 = 68
Branch analysis from position: 60
1 jumps found. (Code = 42) Position 1 = 59
Branch analysis from position: 59
Branch analysis from position: 68
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 68
Branch analysis from position: 12
2 jumps found. (Code = 44) Position 1 = 58, Position 2 = 12
Branch analysis from position: 58
Branch analysis from position: 12
filename:       /in/biM9G
function name:  (null)
number of ops:  70
compiled vars:  !0 = $iterations, !1 = $a, !2 = $times, !3 = $o, !4 = $x, !5 = $start, !6 = $end, !7 = $time, !8 = $name
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   13     0  E >   ASSIGN                                                       !0, 100000
   15     1        INIT_FCALL                                                   'str_repeat'
          2        SEND_VAL                                                     'a'
          3        SEND_VAL                                                     512
          4        DO_ICALL                                             $10     
          5        ASSIGN                                                       !1, $10
   17     6        ASSIGN                                                       !2, <array>
   34     7        NEW                                                  $13     'Om'
          8        DO_FCALL                                          0          
          9        ASSIGN                                                       !3, $13
   36    10        ASSIGN                                                       !4, 0
         11      > JMP                                                          ->56
   38    12    >   INIT_FCALL                                                   'microtime'
         13        SEND_VAL                                                     <true>
         14        DO_ICALL                                             $17     
         15        ASSIGN                                                       !5, $17
   39    16        INIT_FCALL                                                   'strcmp'
         17        SEND_VAR                                                     !1
         18        SEND_VAR                                                     !1
         19        DO_ICALL                                                     
   40    20        INIT_FCALL                                                   'microtime'
         21        SEND_VAL                                                     <true>
         22        DO_ICALL                                             $20     
         23        SUB                                                  ~21     $20, !5
         24        ASSIGN                                                       !6, ~21
   41    25        ASSIGN_DIM_OP                    +=               1          !2, 'direct'
         26        OP_DATA                                                      !6
   43    27        INIT_FCALL                                                   'microtime'
         28        SEND_VAL                                                     <true>
         29        DO_ICALL                                             $24     
         30        ASSIGN                                                       !5, $24
   44    31        INIT_STATIC_METHOD_CALL                                      'Os', 'strcmp'
         32        SEND_VAR                                                     !1
         33        DO_FCALL                                          0          
   45    34        INIT_FCALL                                                   'microtime'
         35        SEND_VAL                                                     <true>
         36        DO_ICALL                                             $27     
         37        SUB                                                  ~28     $27, !5
         38        ASSIGN                                                       !6, ~28
   46    39        ASSIGN_DIM_OP                    +=               1          !2, 'static'
         40        OP_DATA                                                      !6
   48    41        INIT_FCALL                                                   'microtime'
         42        SEND_VAL                                                     <true>
         43        DO_ICALL                                             $31     
         44        ASSIGN                                                       !5, $31
   49    45        INIT_METHOD_CALL                                             !3, 'strcmp'
         46        SEND_VAR_EX                                                  !1
         47        DO_FCALL                                          0          
   50    48        INIT_FCALL                                                   'microtime'
         49        SEND_VAL                                                     <true>
         50        DO_ICALL                                             $34     
         51        SUB                                                  ~35     $34, !5
         52        ASSIGN                                                       !6, ~35
   51    53        ASSIGN_DIM_OP                    +=               1          !2, 'object'
         54        OP_DATA                                                      !6
   36    55        PRE_INC                                                      !4
         56    >   IS_SMALLER                                                   !4, !0
         57      > JMPNZ                                                        ~39, ->12
   54    58    > > FE_RESET_R                                           $40     !2, ->68
         59    > > FE_FETCH_R                                           ~41     $40, !7, ->68
         60    >   ASSIGN                                                       !8, ~41
   55    61        INIT_FCALL                                                   'report'
         62        SEND_VAR                                                     !8
         63        DIV                                                  ~43     !7, !0
         64        MUL                                                  ~44     ~43, 1000
         65        SEND_VAL                                                     ~44
         66        DO_FCALL                                          0          
   54    67      > JMP                                                          ->59
         68    >   FE_FREE                                                      $40
   56    69      > RETURN                                                       1

Function report:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 10, Position 2 = 17
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
filename:       /in/biM9G
function name:  report
number of ops:  20
compiled vars:  !0 = $name, !1 = $time, !2 = $last
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   RECV                                                 !0      
          1        RECV                                                 !1      
    4     2        BIND_STATIC                                                  !2
    5     3        INIT_FCALL                                                   'printf'
          4        SEND_VAL                                                     '%25-12s%3A+%25.8fms'
          5        SEND_VAR                                                     !0
          6        SEND_VAR                                                     !1
          7        DO_ICALL                                                     
    6     8        TYPE_CHECK                                      1020          !2
          9      > JMPZ                                                         ~4, ->17
    7    10    >   INIT_FCALL                                                   'printf'
         11        SEND_VAL                                                     '%2C+%25.1f%25%25'
         12        SUB                                                  ~5      !1, !2
         13        DIV                                                  ~6      ~5, !2
         14        MUL                                                  ~7      ~6, 100
         15        SEND_VAL                                                     ~7
         16        DO_ICALL                                                     
    9    17    >   ECHO                                                         '%0A'
   10    18        ASSIGN                                                       !2, !1
   11    19      > RETURN                                                       null

End of function report

Class Os:
Function strcmp:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/biM9G
function name:  strcmp
number of ops:  6
compiled vars:  !0 = $a
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   24     0  E >   RECV                                                 !0      
   25     1        INIT_FCALL                                                   'strcmp'
          2        SEND_VAR                                                     !0
          3        SEND_VAR                                                     !0
          4        DO_ICALL                                                     
   26     5      > RETURN                                                       null

End of function strcmp

End of class Os.

Class Om:
Function strcmp:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/biM9G
function name:  strcmp
number of ops:  6
compiled vars:  !0 = $a
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   29     0  E >   RECV                                                 !0      
   30     1        INIT_FCALL                                                   'strcmp'
          2        SEND_VAR                                                     !0
          3        SEND_VAR                                                     !0
          4        DO_ICALL                                                     
   31     5      > RETURN                                                       null

End of function strcmp

End of class Om.

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
157.31 ms | 2532 KiB | 18 Q