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<?php error_reporting(0); $date = new DateTime('yesterday'); $null = null; var_dump($date < $null); var_dump($date > $null); var_dump($null < $date); var_dump($null > $date); if (class_exists('DateTimeImmutable')) { $dti = 'DateTimeImmutable'; $dati = new $dti(); var_dump($dati < $date); var_dump($dati > $date); var_dump($null < $dati); var_dump($null > $dati); } else { echo 'Not Implemented'; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 28, Position 2 = 50
Branch analysis from position: 28
1 jumps found. (Code = 42) Position 1 = 51
Branch analysis from position: 51
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 50
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Aqred
function name:  (null)
number of ops:  52
compiled vars:  !0 = $date, !1 = $null, !2 = $dti, !3 = $dati
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   INIT_FCALL                                               'error_reporting'
          1        SEND_VAL                                                 0
          2        DO_ICALL                                                 
    3     3        NEW                                              $5      'DateTime'
          4        SEND_VAL_EX                                              'yesterday'
          5        DO_FCALL                                      0          
          6        ASSIGN                                                   !0, $5
    4     7        ASSIGN                                                   !1, null
    6     8        INIT_FCALL                                               'var_dump'
          9        IS_SMALLER                                       ~9      !0, !1
         10        SEND_VAL                                                 ~9
         11        DO_ICALL                                                 
    7    12        INIT_FCALL                                               'var_dump'
         13        IS_SMALLER                                       ~11     !1, !0
         14        SEND_VAL                                                 ~11
         15        DO_ICALL                                                 
    8    16        INIT_FCALL                                               'var_dump'
         17        IS_SMALLER                                       ~13     !1, !0
         18        SEND_VAL                                                 ~13
         19        DO_ICALL                                                 
    9    20        INIT_FCALL                                               'var_dump'
         21        IS_SMALLER                                       ~15     !0, !1
         22        SEND_VAL                                                 ~15
         23        DO_ICALL                                                 
   11    24        INIT_FCALL                                               'class_exists'
         25        SEND_VAL                                                 'DateTimeImmutable'
         26        DO_ICALL                                         $17     
         27      > JMPZ                                                     $17, ->50
   12    28    >   ASSIGN                                                   !2, 'DateTimeImmutable'
   13    29        FETCH_CLASS                                   0  $19     !2
         30        NEW                                              $20     $19
         31        DO_FCALL                                      0          
         32        ASSIGN                                                   !3, $20
   15    33        INIT_FCALL                                               'var_dump'
         34        IS_SMALLER                                       ~23     !3, !0
         35        SEND_VAL                                                 ~23
         36        DO_ICALL                                                 
   16    37        INIT_FCALL                                               'var_dump'
         38        IS_SMALLER                                       ~25     !0, !3
         39        SEND_VAL                                                 ~25
         40        DO_ICALL                                                 
   17    41        INIT_FCALL                                               'var_dump'
         42        IS_SMALLER                                       ~27     !1, !3
         43        SEND_VAL                                                 ~27
         44        DO_ICALL                                                 
   18    45        INIT_FCALL                                               'var_dump'
         46        IS_SMALLER                                       ~29     !3, !1
         47        SEND_VAL                                                 ~29
         48        DO_ICALL                                                 
         49      > JMP                                                      ->51
   20    50    >   ECHO                                                     'Not+Implemented'
   21    51    > > RETURN                                                   1

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