PHP obtains the memory usage status memory_get_usage () function

Format memory_get_usage () output

The code is as follows:	Copy code
<? Php Function convert ($ size ){ $ Unit = array ('B', 'KB', 'mb', 'GB', 'TB', 'petab '); Return @ round ($ size/pow (1024, ($ I = floor (log ($ size, 1024), 2 ). ''. $ unit [$ I]; } Echo convert (memory_get_usage (true )); ?>

Output: 256 kb

The PHP memory_get_usage () function can also have a parameter $ real_usage with a Boolean value. The default value is FALSE, indicating that the obtained memory usage does not include the memory occupied by this function (PHP memory manager). If it is set to TRUE, the resulting memory does not include the memory occupied by this function (PHP memory manager.

Example

The code is as follows:

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If (! Function_exists ('memory _ get_usage '))  { Function memory_get_usage ()      { $ Pid = getmypid (); If (IS_WIN)        { Exec ('tasklist/FI "PID eq '. $ pid.'"/FO list', $ output ); Return preg_replace ('/[^ 0-9]/', ', $ output [5]) * 1024;          }  Else         { Exec ("ps-eo % mem, rss, pid | grep $ pid", $ output ); $ Output = explode ("", $ output [0]); Return $ output [1] * 1024;          }     } }