memory_get_peak_usage
  Returns the peak of memory allocated by PHP
  
 
  Description
  
   int memory_get_peak_usage
    ([ bool $real_usage = false
  ] )
  
  
 
  Parameters
  
   
    
     - 
real_usage
- 
      
       Set this to TRUEto get the real size of memory allocated from
       system. If not set orFALSEonly the memory used by
       emalloc() is reported.
 
 
 
  Return Values
  
   Returns the memory peak in bytes.