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- How to use xhprof to test php performance in php7? (Method introduction)
- PHP's xhprof extension is no longer updated and maintained by Facebook because Facebook has fully used HHVM and no longer uses the PHP zend engine. xhprof does not support the new version of PHP (PHP7). The tideways extension is forked from the xhprof project and continues to be maintained.
- PHP7 4771 2023-02-17 17:02:01
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- Do you know what causes php7 to be faster than 5?
- Reasons for performance improvement? 1. The structure that stores variables becomes smaller. Try to make the members of the structure share memory space and reduce references. This way the memory usage is reduced and the operation speed of variables is improved. 2. Changes to the string structure. The string information and data itself were originally stored in two independent memory blocks. PHP7 tries to store them in the same memory block, which improves the CPU cache hit rate. 3. Changes in the array structure. Array elements and hash mapping tables will be stored in multiple memory blocks in php5. php7 tries to allocate them in the same memory block, reducing memory usage,..._Why is php7 faster than 5?
- PHP7 3042 2023-02-17 17:00:02
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- Linux source code installation php7.2.0
- Source code package download address https://pan.baidu.com/s/1bpi4D9l2. Unzip the php compressed package: tar –zxvf php-7.2.0.tar.gz3. Enter the decompressed file: cd php7.2.04. What is needed to install php Extend yum install libxml2 libxml2-devel openssl opens...
- PHP7 3236 2023-02-17 16:58:01
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- Detailed explanation of how to install php7 on centos yum
- How to install php7 on centos yum: first upgrade the yum warehouse package to the rpm package of PHP7; then use the yum command to install basic PHP components; then install "PHP-fpm" and start "php-fpm"; finally check the version to detect whether Successful installation.
- PHP7 3719 2023-02-17 16:56:02
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- How to completely delete PHP7.0 from Ubuntu
- How to completely delete PHP in Ubuntu: first delete the relevant packages and configurations of PHP through the command "sudo apt-get autoremove php7*"; then delete the association; then clear the dept list; and finally check whether the uninstall is clean.
- PHP7 4880 2023-02-17 16:54:01
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- What optimizations have been made at the bottom of PHP7?
- The optimizations made at the bottom of PHP7 include: 1. Optimization of the ZVAL structure, reducing the occupancy from 24 bytes to 16 bytes; 2. The internal type "zend_string", the structure member variables use "char" arrays, not "char*" "; 3. PHP array implementation changes from hashtable to zend and so on.
- PHP7 4146 2023-02-17 16:52:02
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- Example analysis of the difference between '??' and '?:' introduced in PHP7
- The difference between "??" and "?" introduced in PHP7 is: [$a ?? 0] is equivalent to [isset($a) ? $a : 0]; 2. [$a ?: 0] is equivalent to [$a ? $a : 0].
- PHP7 3427 2023-02-17 16:50:01
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- How to make PHP 7 run faster
- PHP 7 is much faster than [5. If you reach PHP 7, you will definitely not be able to run LAMP or LEMP. Please prepare the installation of the underlying service first.
- PHP7 3455 2023-02-17 16:48:01
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- Learn the detailed tutorial to perfectly install PHP7 on Mac system
- Now there are many ways to install Php7. Today I will teach you how to install PHP7 perfectly through the Mac system. It is detailed, serious and has a lot of useful information. I hope it can help everyone and learn and make progress with everyone.
- PHP7 3817 2023-02-17 16:46:01
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- Detailed explanation of PHP7 environment configuration in windows7
- At present, PHP has reached 7, but the configuration of version 7 is different from the previous version 5. Today I will record the environment configuration of 7. For the apache configuration, you can download the corresponding version according to your own platform.
- PHP7 3865 2023-02-17 16:44:02
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- Let's take a look at the major new features of php7
- So far, PHP has officially released the RC5 version of php7. Now the major features of php7 have definitely been finalized and there will be no more changes. The iterations of some subsequent versions are mainly bug fixes, optimizations and the like. Let’s talk about the main changes in php7 that we have been looking forward to.
- PHP7 3566 2023-02-17 16:42:01
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- How to install PHP7 under centos7?
- The path of the added library file must be consistent with the system platform arch. For 32-bit systems, just add [/usr/local/lib] directly. For 64-bit systems, you must add [/usr/local/lib64.], otherwise an error will still be reported. This article will Detailed introduction on how to install PHP7 under centos7.
- PHP7 4618 2023-02-17 16:40:01
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- How to connect to sql server in PHP7?
- The latest version on the official website is 7.1.3, but this version is inconsistent with the Microsoft PHP SQL driver, which makes it impossible to load the [php_sqlsrv_7_ts_x64.dll] file. At first, I thought it was the wrong version between 32 and 64, but it still didn’t work after changing it, so I tried lowering the version. Tried it, and it was successful.
- PHP7 4947 2023-02-17 16:38:02
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- Analyze the internal implementation of variables in the PHP7 kernel
- The basic structure of PHP variable implementation is zval. Various types of implementations are based on this structure. It is the most basic structure in PHP. Each PHP variable corresponds to a zval. Let’s take a look at this structure and the memory management of PHP variables. mechanism.
- PHP7 2735 2023-02-17 16:36:01
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- Comparison explains the optimization and improvement of PHP7
- This article is a comparison between PHP7 and previous versions of PHP. First, let’s talk about the new things brought by PHP7: type declarations, [set_exception_handler()], and new operators "??" "<=>" , anonymous functions, define constant arrays, namespace reference optimization, etc.
- PHP7 3046 2023-02-17 16:34:02
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