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The purpose of the delimiting tags is to separate PHP code from non-PHP data (mainly HTML). Although rare in practice, PHP will execute code embedded in any file passed to its interpreter, including binary files such as PDF or JPEG files, or in server log files.
As of 21 January 2025 (two months after PHP 8.4's release), PHP is used as the server-side programming language on 75.0% of websites where the language could be determined; PHP 7 is the most used version of the language with 47.1% of websites using PHP being on that version, while 40.6% use PHP 8, 12.2% use PHP 5 and 0.1% use PHP 4.
In computer science, program optimization, code optimization, or software optimization is the process of modifying a software system to make some aspect of it work more efficiently or use fewer resources. [1]
After you try the solutions in this article, and your computer still struggles with basic tasks, can’t run necessary software or updates, is significantly out of date in terms of hardware, or ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 February 2025. Language for communicating instructions to a machine The source code for a computer program in C. The gray lines are comments that explain the program to humans. When compiled and run, it will give the output "Hello, world!". A programming language is a system of notation for writing ...
Run a system diagnostics test found in your computer's settings or control panel to check its health. Then, use built-in utilities like disk cleanup and defragmenter tools to assess and optimize ...
Software bloat may induce more vulnerabilities due to raise of difficulty in managing a large number of code and dependencies. Furthermore, it may make software developer difficulty to understand the code they ship, increasing the difficulty for spot and fix vulnerabilities. [36] [37]
Runtime, run time, or execution time is the final phase of a computer program ' s life cycle, in which the code is being executed on the computer's central processing unit (CPU) as machine code. In other words, "runtime" is the running phase of a program.