memory_get_usage(3) [php man page]

MEMORY_GET_USAGE(3)							 1						       MEMORY_GET_USAGE(3)

memory_get_usage - Returns the amount of memory allocated to PHP

SYNOPSIS

       int memory_get_usage ([bool  $real_usage = false])

DESCRIPTION

	Returns the amount of memory, in bytes, that's currently being allocated to your PHP script.

PARAMETERS

	      o $real_usage
		-  Set this to TRUE to get the real size of memory allocated from system. If not set or FALSE only the memory used by emalloc() is
		reported.

RETURN VALUES

	Returns the memory amount in bytes.

CHANGELOG

       +--------+---------------------------------------------------+
       |Version |						    |
       |	|						    |
       |	|		     Description		    |
       |	|						    |
       +--------+---------------------------------------------------+
       | 5.2.1	|						    |
       |	|						    |
       |	|  Compiling  with  --enable-memory-limit   is	 no |
       |	| longer required for this function to exist.	    |
       |	|						    |
       | 5.2.0	|						    |
       |	|						    |
       |	|	       $real_usage was added.		    |
       |	|						    |
       +--------+---------------------------------------------------+
EXAMPLES

       Example #1

	      A memory_get_usage(3) example

	      <?php
	      // This is only an example, the numbers below will
	      // differ depending on your system

	      echo memory_get_usage() . "
"; // 36640

	      $a = str_repeat("Hello", 4242);

	      echo memory_get_usage() . "
"; // 57960

	      unset($a);

	      echo memory_get_usage() . "
"; // 36744

	      ?>

SEE ALSO

       memory_get_peak_usage(3), memory_limit.

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