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<?php $memoryUsage = memory_get_peak_usage(false); trim('a'); $memoryUsage = abs(memory_get_peak_usage(false) - $memoryUsage); var_dump($memoryUsage); $memoryUsage = memory_get_peak_usage(true); trim('a'); $memoryUsage = abs(memory_get_peak_usage(true) - $memoryUsage); var_dump($memoryUsage);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/0SjGE
function name:  (null)
number of ops:  35
compiled vars:  !0 = $memoryUsage
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                                   'memory_get_peak_usage'
          1        SEND_VAL                                                     <false>
          2        DO_ICALL                                             $1      
          3        ASSIGN                                                       !0, $1
    4     4        FRAMELESS_ICALL_1                trim                ~3      'a'
          5        FREE                                                         ~3
    5     6        INIT_FCALL                                                   'abs'
          7        INIT_FCALL                                                   'memory_get_peak_usage'
          8        SEND_VAL                                                     <false>
          9        DO_ICALL                                             $4      
         10        SUB                                                  ~5      $4, !0
         11        SEND_VAL                                                     ~5
         12        DO_ICALL                                             $6      
         13        ASSIGN                                                       !0, $6
    6    14        INIT_FCALL                                                   'var_dump'
         15        SEND_VAR                                                     !0
         16        DO_ICALL                                                     
    8    17        INIT_FCALL                                                   'memory_get_peak_usage'
         18        SEND_VAL                                                     <true>
         19        DO_ICALL                                             $9      
         20        ASSIGN                                                       !0, $9
    9    21        FRAMELESS_ICALL_1                trim                ~11     'a'
         22        FREE                                                         ~11
   10    23        INIT_FCALL                                                   'abs'
         24        INIT_FCALL                                                   'memory_get_peak_usage'
         25        SEND_VAL                                                     <true>
         26        DO_ICALL                                             $12     
         27        SUB                                                  ~13     $12, !0
         28        SEND_VAL                                                     ~13
         29        DO_ICALL                                             $14     
         30        ASSIGN                                                       !0, $14
   11    31        INIT_FCALL                                                   'var_dump'
         32        SEND_VAR                                                     !0
         33        DO_ICALL                                                     
         34      > RETURN                                                       1

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