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<?php $test = 'aaa,test'; $locations = explode(',', $test); var_dump($locations); var_dump(array_pop($locations));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/enMe0k
function name:  (null)
number of ops:  16
compiled vars:  !0 = $test, !1 = $locations
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'aaa%2Ctest'
    4     1        INIT_FCALL                                               'explode'
          2        SEND_VAL                                                 '%2C'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $3      
          5        ASSIGN                                                   !1, $3
    6     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                                 
    7     9        INIT_FCALL                                               'var_dump'
         10        INIT_FCALL                                               'array_pop'
         11        SEND_REF                                                 !1
         12        DO_ICALL                                         $6      
         13        SEND_VAR                                                 $6
         14        DO_ICALL                                                 
         15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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