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<?php $a = array(); $a["100"] = true; echo "$a is an associative map: "; var_export($a); $keys = array_keys($a); echo "It has these keys: "; var_export($keys); var_dump( is_string($keys[0]) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4oJik
function name:  (null)
number of ops:  23
compiled vars:  !0 = $a, !1 = $keys
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1        ASSIGN_DIM                                               !0, 100
          2        OP_DATA                                                  <true>
    4     3        NOP                                                      
          4        FAST_CONCAT                                      ~4      !0, '+is+an+associative+map%3A+'
          5        ECHO                                                     ~4
    5     6        INIT_FCALL                                               'var_export'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                                 
    7     9        INIT_FCALL                                               'array_keys'
         10        SEND_VAR                                                 !0
         11        DO_ICALL                                         $6      
         12        ASSIGN                                                   !1, $6
    8    13        ECHO                                                     'It+has+these+keys%3A+'
    9    14        INIT_FCALL                                               'var_export'
         15        SEND_VAR                                                 !1
         16        DO_ICALL                                                 
   11    17        INIT_FCALL                                               'var_dump'
         18        FETCH_DIM_R                                      ~9      !1, 0
         19        TYPE_CHECK                                   64  ~10     ~9
         20        SEND_VAL                                                 ~10
         21        DO_ICALL                                                 
         22      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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