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<?php $a = NULL; if (!is_null($a) && !is_array($a)) { throw new Exception('The names of required fields must be an array, even if only one field is required.'); } else { echo "The if clause was not run"; } /* echo isset($a)?'true':'false'; */
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 46) Position 1 = 4, Position 2 = 7
Branch analysis from position: 4
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 13
Branch analysis from position: 8
1 jumps found. (Code = 108) Position 1 = -2
Branch analysis from position: 13
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
filename:       /in/YFIhW
function name:  (null)
number of ops:  15
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, null
    5     1        TYPE_CHECK                                    2  ~2      !0
          2        BOOL_NOT                                         ~3      ~2
          3      > JMPZ_EX                                          ~3      ~3, ->7
          4    >   TYPE_CHECK                                  128  ~4      !0
          5        BOOL_NOT                                         ~5      ~4
          6        BOOL                                             ~3      ~5
          7    > > JMPZ                                                     ~3, ->13
          8    >   NEW                                              $6      'Exception'
          9        SEND_VAL_EX                                              'The+names+of+required+fields+must+be+an+array%2C+even+if+only+one+field+is+required.'
         10        DO_FCALL                                      0          
         11      > THROW                                         0          $6
         12*       JMP                                                      ->14
    7    13    >   ECHO                                                     'The+if+clause+was+not+run'
    9    14      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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