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<?php function test($a) { echo empty($a) ? '1' : '0'; } test(false); test(true); test( array() );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kiinM
function name:  (null)
number of ops:  10
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   INIT_FCALL                                               'test'
          1        SEND_VAL                                                 <false>
          2        DO_FCALL                                      0          
    7     3        INIT_FCALL                                               'test'
          4        SEND_VAL                                                 <true>
          5        DO_FCALL                                      0          
    8     6        INIT_FCALL                                               'test'
          7        SEND_VAL                                                 <array>
          8        DO_FCALL                                      0          
          9      > RETURN                                                   1

Function test:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 5
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 6
Branch analysis from position: 6
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 5
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kiinM
function name:  test
number of ops:  8
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   RECV                                             !0      
    3     1        ISSET_ISEMPTY_CV                                         !0
          2      > JMPZ                                                     ~1, ->5
          3    >   QM_ASSIGN                                        ~2      '1'
          4      > JMP                                                      ->6
          5    >   QM_ASSIGN                                        ~2      '0'
          6    >   ECHO                                                     ~2
    4     7      > RETURN                                                   null

End of function test

Generated using Vulcan Logic Dumper, using php 8.0.0


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