3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = array( 2 => 1, '_multiwidget' => 1 ); $keys = array_keys($test); unset($keys['_multiwidget']); print_r($keys);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/TvQd7
function name:  (null)
number of ops:  10
compiled vars:  !0 = $test, !1 = $keys
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    8     1        INIT_FCALL                                               'array_keys'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                         $3      
          4        ASSIGN                                                   !1, $3
    9     5        UNSET_DIM                                                !1, '_multiwidget'
   10     6        INIT_FCALL                                               'print_r'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
188.47 ms | 1385 KiB | 17 Q