Server web tools in php environment_PHP tutorial
HTTP Accelerator—Varnish
TCP/HTTP Load Balancer—HAProxy
Distributed Memory Sharing—Memcache
High-Performance HTTP and Reverse Proxy Server—Nginx
Internet data buffering software—Squid
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Explain the match expression (PHP 8 ) and how it differs from switch.
Apr 06, 2025 am 12:03 AM
In PHP8, match expressions are a new control structure that returns different results based on the value of the expression. 1) It is similar to a switch statement, but returns a value instead of an execution statement block. 2) The match expression is strictly compared (===), which improves security. 3) It avoids possible break omissions in switch statements and enhances the simplicity and readability of the code.
Does H5 page production require continuous maintenance?
Apr 05, 2025 pm 11:27 PM
The H5 page needs to be maintained continuously, because of factors such as code vulnerabilities, browser compatibility, performance optimization, security updates and user experience improvements. Effective maintenance methods include establishing a complete testing system, using version control tools, regularly monitoring page performance, collecting user feedback and formulating maintenance plans.
Describe the purpose and usage of the ... (splat) operator in PHP function arguments and array unpacking.
Apr 06, 2025 am 12:07 AM
The... (splat) operator in PHP is used to unpack function parameters and arrays, improving code simplicity and efficiency. 1) Function parameter unpacking: Pass the array element as a parameter to the function. 2) Array unpacking: Unpack an array into another array or as a function parameter.
How to achieve gap effect on the card and coupon layout with gradient background?
Apr 05, 2025 am 07:48 AM
Realize the gap effect of card coupon layout. When designing card coupon layout, you often encounter the need to add gaps on card coupons, especially when the background is gradient...
Why does negative margins not take effect in some cases? How to solve this problem?
Apr 05, 2025 pm 10:18 PM
Why do negative margins not take effect in some cases? During programming, negative margins in CSS (negative...
What is Cross-Site Request Forgery (CSRF) and how do you implement CSRF protection in PHP?
Apr 07, 2025 am 12:02 AM
In PHP, you can effectively prevent CSRF attacks by using unpredictable tokens. Specific methods include: 1. Generate and embed CSRF tokens in the form; 2. Verify the validity of the token when processing the request.
Why are the purple slashed areas in the Flex layout mistakenly considered 'overflow space'?
Apr 05, 2025 pm 05:51 PM
Questions about purple slash areas in Flex layouts When using Flex layouts, you may encounter some confusing phenomena, such as in the developer tools (d...
How to obtain real-time application and viewer data on the 58.com work page?
Apr 05, 2025 am 08:06 AM
How to obtain dynamic data of 58.com work page while crawling? When crawling a work page of 58.com using crawler tools, you may encounter this...
