Abstract: memory management has a significant impact on long-running programs, such as server daemon. Therefore, understanding how PHP allocates and releases memory is extremely important for creating such programs. This article focuses on PHP
Today I smoked a morning to look at the previous solution to the memory problem of the code, relatively speaking, I am very dissatisfied with the code optimization program, one import 40,000 of data to make the code so cumbersome, I think this is
The PHP memory consumption needs to be obtained during the performance optimization process. The memory_get_usage () function can be used to obtain the current memory consumption. The function is easy to use. Here we will discuss the usage and
This article mainly introduces the memcached example of the PHP memory cache function, and briefly introduces memcached, which is a typical application of php to operate memcached. if you need it, let's take a look, the following describes the
Php memory management PHP uses reference computing and write copy php uses reference computing and write copy-on-write to manage memory. During write replication, make sure that no memory is wasted when copying values between variables. for
Php memory management-extension and embedding of php. Php's memory management mechanism is quite detailed. it is more similar to java's garbage collection mechanism. In most cases, programmers can only elaborate on the memory management mechanism of
This time for you to bring PHP memory release and garbage collection using a detailed explanation, PHP memory release and garbage collection considerations, the following is the actual case, together to see.
Reference assignment
$a = ' Apple '; $b =
Details about the storage layer (1) in the PHP memory pool ). The memory manager of PHP is hierarchical. This manager has three layers: storage, heap, and emallocefree. The storage layer uses the memory manager of malloc () and mmap PHP to
In actual encoding, to view and operate the memory, many programmers first think of the PHP script memory function PHPmemory_get_usage (). below is the PHP memory_get_usage () Usage example:
The code is as follows:
Echo memory_get_usage (),'
';
Yesterday, a colleague in the PHP discussion group mentioned that he did a project because the MySQL query returned too many results (up to 100,000), resulting in insufficient PHP memory. So, he asks, is the data already in memory before executing
1. Why memory management is requiredBecause the computer's memory is managed by the operating system, the normal application is unable to access the memory directly, and the application can only request memory from the operating system, and the
PHP performance Optimization process to avoid the need to get PHP memory consumption, using the Memory_get_usage () function to get the current memory consumption situation, the function is simple to use, the following example of the form of the use
Today I smoked a morning to look at the previous solution to the memory problem of the code, relatively speaking, I am very dissatisfied with the code optimization program, one import 40,000 of data to make the code so cumbersome, I think this is
In-depth analysis of PHP memory management who moved my memory. First let's look at the problem: the output of the following code, the copy code is as follows: var_dump (memory_get_usage (); $ alaruence; var_dump (memory_get_usage (); unset ($ );
PHP memory cache Memcached class instance, phpmemcached
This example describes the PHP memory cache Memcached class. Share it with you for your reference.
The specific implementation method is as follows:
Copy codeThe Code is as follows: Class
Mar 11 in-depth understanding of PHP memory management who moved my memory
Author: laruence ()
This address: http://www.laruence.com/2011/03/04/1894.html
Reprint please indicate the source
First let's look at a problem: the
The most comprehensive php memory overflow solution
1. memory overflow solution
During data statistical analysis, large arrays are often encountered, and memory overflow may occur. here is my solution. The problem is illustrated in the following
This article mainly introduces about PHP source 32: PHP memory Pool in the Emalloc/efree layer and heap (heap) layer, has a certain reference value, now share to everyone, the need for friends can refer to
On PHP source 32: Emalloc/efree layer and
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