3v4l.org

run code in 500+ PHP versions simultaneously
<?php $urls = [ ['url' => 'https://www.example.com/', 'parent_url' => 'https://www.example.com/bleh/bleh.aspx'], ['url' => 'https://www.example2.com/', 'parent_url' => 'https://www.example2.com/blar.aspx'], 'not an array', ['url' => 'https://www.example.com/', 'parent_url' => 'https://www.example.com/bla/bla.aspx'], ]; $urls_uniq = ['https://www.example.com/', 'https://www.example.com/go/173.aspx']; var_export( array_uintersect( $urls, $urls_uniq, function($a, $b) { echo json_encode($a) . ' VS ' . json_encode($b) . "\n"; // return ($a['url'] ?? null) === $b ? 0 : 1; // this doesn't work. // return ($a['url'] ?? $a) === ($b['url'] ?? $b) ? 0 : 1; // this doesn't work return strcmp($a['url'] ?? $a, $b['url'] ?? $b); // or return ($a['url'] ?? $a) <=> ($b['url'] ?? $b); } ) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/3mNJ7
function name:  (null)
number of ops:  12
compiled vars:  !0 = $urls, !1 = $urls_uniq
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
   10     1        ASSIGN                                                       !1, <array>
   12     2        INIT_FCALL                                                   'var_export'
   13     3        INIT_FCALL                                                   'array_uintersect'
   14     4        SEND_VAR                                                     !0
   15     5        SEND_VAR                                                     !1
   16     6        DECLARE_LAMBDA_FUNCTION                              ~4      [0]
   22     7        SEND_VAL                                                     ~4
   13     8        DO_ICALL                                             $5      
   22     9        SEND_VAR                                                     $5
   12    10        DO_ICALL                                                     
   24    11      > RETURN                                                       1


Dynamic Functions:
Dynamic Function 0
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/3mNJ7
function name:  {closure:/in/3mNJ7:16}
number of ops:  24
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
   16     0  E >   RECV                                                 !0      
          1        RECV                                                 !1      
   17     2        INIT_FCALL                                                   'json_encode'
          3        SEND_VAR                                                     !0
          4        DO_ICALL                                             $2      
          5        CONCAT                                               ~3      $2, '+VS+'
          6        INIT_FCALL                                                   'json_encode'
          7        SEND_VAR                                                     !1
          8        DO_ICALL                                             $4      
          9        CONCAT                                               ~5      ~3, $4
         10        CONCAT                                               ~6      ~5, '%0A'
         11        ECHO                                                         ~6
   20    12        INIT_FCALL                                                   'strcmp'
         13        FETCH_DIM_IS                                         ~7      !0, 'url'
         14        COALESCE                                             ~8      ~7
         15        QM_ASSIGN                                            ~8      !0
         16        SEND_VAL                                                     ~8
         17        FETCH_DIM_IS                                         ~9      !1, 'url'
         18        COALESCE                                             ~10     ~9
         19        QM_ASSIGN                                            ~10     !1
         20        SEND_VAL                                                     ~10
         21        DO_ICALL                                             $11     
         22      > RETURN                                                       $11
   22    23*     > RETURN                                                       null

End of Dynamic Function 0

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
169.57 ms | 2216 KiB | 17 Q