destroy memory

The unset () function of PHP is used to clear and destroy variables. unused variables can be destroyed using unset. However, in some cases, the memory occupied by destroying variables cannot be reached with unset! The code is as follows: For ($ I =

The unset () function of PHP is used to clear and destroy variables. unused variables can be destroyed using unset. However, in some cases, the memory occupied by destroying variables cannot be reached with unset! Copy codeThe code is as

The purpose of the destroy is for memory leaks, which can have an impact on performance.Angular scope triggers destroy when dealing with element removal, and the invocation logic is used as jquery.There is one thing you can refer to in CK Editor.CK

Reprinted from: http://www.okajax.com/a/201106/php_unset.html The unset () function of PHP is used to clear and destroy variables. unused variables can be destroyed using unset. However, in some cases, the memory occupied by destroying variables

foreach ($tags as $value) { if (Isset ($alls [$value [' username ']]) {$m =memory_get_usage () Unset ($alls [$value [' username ']]; Unset ($value); }else{ $alls [$value [' username ']] = $value; }}Look at the code:

Copy codeThe Code is as follows:For ($ I = 1; I I $ Str = str_repeat ('20140901', $ I );$ A = memory_get_usage ();Unset ($ str );$ B = memory_get_usage ();Echo "\ n". $ I. ':'. ($ B-$ a). 'bytes .';} The result shows that:8x32 = 256 it is really

Copy Code code as follows: for ($i = 1; $i $str = str_repeat (' 01234567 ', $i); $a = Memory_get_usage (); Unset ($STR); $b = Memory_get_usage (); echo "\ n ". $i. ': '. ($b-$a). ' Bytes. '; } From the result, we see: 8

Let's first look at an example: The code is as follows:Copy code $ S = str_repeat ('1', 255); // generates a string consisting of 255 1$ M = memory_get_usage (); // Get the memory occupied currentlyUnset ($ s );$ Mm = memory_get_usage (); //

I have seen an introduction to the memory pool technology, which has benefited a lot. Original post address: http://www.ibm.com/developerworks/cn/linux/l-cn-ppp/index6.html  6.1 Principle of Performance Optimization for custom memory pools As

See an article about the memory pool technology introduction article, benefited, posted here.Original Sticker Address: http://www.ibm.com/developerworks/cn/linux/l-cn-ppp/index6.html 6.1 The principle of custom memory pool performance optimizationAs