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<?php function foo() { static $bar = "1234567890123456789012345678901234567890"; return $bar; } var_dump(memory_get_usage()); $f = foo(); var_dump(memory_get_usage());
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/sIoe5
function name:  (null)
number of ops:  14
compiled vars:  !0 = $f
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'memory_get_usage'
          2        DO_ICALL                                         $1      
          3        SEND_VAR                                                 $1
          4        DO_ICALL                                                 
    9     5        INIT_FCALL                                               'foo'
          6        DO_FCALL                                      0  $3      
          7        ASSIGN                                                   !0, $3
   10     8        INIT_FCALL                                               'var_dump'
          9        INIT_FCALL                                               'memory_get_usage'
         10        DO_ICALL                                         $5      
         11        SEND_VAR                                                 $5
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/sIoe5
function name:  foo
number of ops:  3
compiled vars:  !0 = $bar
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   BIND_STATIC                                              !0
    5     1      > RETURN                                                   !0
    6     2*     > RETURN                                                   null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


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