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  • PHP environment setup: Choose the right tool for you
    PHP environment setup: Choose the right tool for you
    XAMPP is the first choice for beginners. Docker is recommended for advanced development. Laravel developers are suitable for Homestead or Sail. The tools are selected in different scenarios as follows: 1. Newbie or temporary tests are preferred for XAMPP/WAMP/MAMP, which is simple to install and convenient to configure; 2. Docker Nginx/PHP-FPM/MySQL is recommended for formal projects or team collaboration, which is isolated and easy to deploy; 3. Laravel users can choose Homestead (based on Vagrant) or Sail (Docker configuration) to improve development efficiency; 4. Mac users can use Homebrew to build their own environment, which is suitable for scenarios that require deep control but pay attention to version compatibility
    PHP Tutorial . Backend Development 945 2025-06-27 01:32:40
  • How do I pass arguments to a function in PHP?
    How do I pass arguments to a function in PHP?
    Methods of passing function parameters in PHP include: defining parameters, using default values, passing references, and variable number of parameters. Declare parameters when defining functions and pass values ??when calling, such as functiongreet($name) and greet("Alice"); default values ??can be set, such as functiongreet($name="Guest"); reference passing through the & symbol, such as functionincrement(&$number); use the... operator to accept variable parameters, such as functionsum(...$numbers), so as to flexibly handle different numbers
    PHP Tutorial . Backend Development 708 2025-06-27 01:19:00
  • How do I profile database queries to identify slow-performing queries?
    How do I profile database queries to identify slow-performing queries?
    Toidentifyslow-performingdatabasequeries,usebuilt-inprofilingtools,monitorexecutionplans,trackreal-timeactivity,andanalyzeapplicationlogs.1)Enablebuilt-intoolslikeMySQL’sSlowQueryLog,PostgreSQL’spg_stat_statements,orSQLServer’sQueryStoretologslowquer
    PHP Tutorial . Backend Development 317 2025-06-27 01:13:01
  • How do I add or remove elements from an array in PHP?
    How do I add or remove elements from an array in PHP?
    Adding or deleting array elements in PHP requires a specific function or syntax. 1. Add elements: Use square brackets [] to append elements to the end of the array; use array_push() to add multiple elements at the end; use array_unshift() to insert elements at the beginning of the array. 2. Delete elements: Use array_shift() to remove and return the first element; use array_pop() to remove and return the last element; use unset() to delete the specified element through the key; if deleted by value, use array_search() to find the key and then use unset(); if you need to re-index after deletion, use array_values() to reset the key. These methods
    PHP Tutorial . Backend Development 627 2025-06-27 01:10:40
  • How to run PHP scripts in the command line?
    How to run PHP scripts in the command line?
    To run the PHP script on the command line, first make sure that the PHP environment is installed, enter php-v to view the version information; then create the test.php file and execute it using the phptest.php command; if you want to run the script directly, add the shebang line #!/usr/bin/envphp and give the execution permissions chmod xtest.php to run it with ./test.php; in addition, you need to pay attention to path issues, configuration differences between CLI and Web modes, and display of error prompts. The whole process is simple and clear, and is suitable for various scenarios such as data processing and timing tasks.
    PHP Tutorial . Backend Development 424 2025-06-27 01:07:01
  • Use Docker to quickly set up a PHP development environment
    Use Docker to quickly set up a PHP development environment
    TosetupaPHPdevelopmentenvironmentquickly,useDockerwithpre-builtimagesandDockerComposefordatabaseintegration.First,pulltheofficialphp:8.2-apacheimageandrunacontainermappedtoport8080.Next,mountyourlocalcodedirectoryto/var/www/htmlforliveediting.Finally
    PHP Tutorial . Backend Development 212 2025-06-27 01:05:40
  • What is the difference between errors and exceptions in PHP?
    What is the difference between errors and exceptions in PHP?
    InPHP,errorsandexceptionsdifferintheircausesandhandlingmethods.Errorsarecriticalissueslikesyntaxmistakesorruntimefailuresthattypicallystopexecution,includingparseerrors,fatalerrors,warnings,andnotices,andtheycan'tbecaughtunlessusingcustomerrorhandler
    PHP Tutorial . Backend Development 912 2025-06-27 01:05:20
  • A detailed guide to setting up a PHP environment using WAMP
    A detailed guide to setting up a PHP environment using WAMP
    SettingupaPHPenvironmentwithWAMPissimpleandefficient.1.DownloadthecorrectversionofWAMP(32-bitor64-bit)fromtheofficialsiteandinstallit,acceptingdefaultsandallowingfirewallaccess.2.LaunchWAMP,waitfortheicontoturngreenindicatingallservicesarerunning,and
    PHP Tutorial . Backend Development 932 2025-06-27 01:03:00
  • Common problems and solutions for setting up a PHP environment
    Common problems and solutions for setting up a PHP environment
    Common problems in building a PHP environment include environment variable configuration errors, extension loading failures, version conflicts, etc. 1. The PHP command cannot be run or the prompt "not an internal or external command" is prompted: add the PHP installation directory to the system PATH environment variables and restart the terminal or editor; if using XAMPP or WAMP, make sure that the Apache service has been started. 2. PHP extension cannot be loaded: Enable the corresponding extension in php.ini, confirm that the configuration file you are currently using is modified, and check whether the required DLL file exists in the ext directory. 3. Version incompatibility causes code exception: view the current version through php-v, use the version management tool to switch to the required version of the project, and specify the interpreter path in the IDE to avoid
    PHP Tutorial . Backend Development 728 2025-06-27 01:01:20
  • Steps to configure a PHP development environment on macOS
    Steps to configure a PHP development environment on macOS
    TosetupaPHPdevelopmentenvironmentonmacOS,installHomebrew,useittoinstallPHPviashivammathur/phptap,setupApacheorNginxasthewebserver,andoptionallyinstallMySQLandComposer.1.InstallHomebrewwiththeprovidedcommandandupdateit.2.Addtheshivammathur/phptapandin
    PHP Tutorial . Backend Development 1027 2025-06-27 00:56:20
  • What are the performance improvements in PHP 8 compared to PHP 7?
    What are the performance improvements in PHP 8 compared to PHP 7?
    The performance improvement of PHP8 mainly comes from the newly introduced JIT compiler and Zend engine optimization, but the benefits in actual applications vary by scenario. 1. The JIT compiler compiles some code into machine code at runtime, significantly improving the performance of CLI scripts or long-term APIs, but has limited effect in short-lifetime web requests; 2. OPcache improves and enhances opcode caching and preloading functions, reducing disk I/O and parsing overhead, especially for frameworks such as Laravel or Symfony; 3. Multiple internal optimizations such as more efficient string and array operations, smaller memory usage, etc. Although each improvement is small, it accumulates in small amounts; 4. The actual performance improvement depends on the application scenario, PHP8 can be fast 10 in computing-intensive tasks.
    PHP Tutorial . Backend Development 604 2025-06-27 00:51:10
  • A detailed tutorial on setting up a PHP environment using XAMPP
    A detailed tutorial on setting up a PHP environment using XAMPP
    TosetupaPHPenvironmentusingXAMPP,installXAMPPbasedonyourOS,startApacheandMySQLservices,handleportconflictsifneeded,placePHPfilesinthehtdocsdirectory,andusephpMyAdminfordatabasemanagement.1.DownloadandinstallXAMPPfromApacheFriendsforyouroperatingsyste
    PHP Tutorial . Backend Development 602 2025-06-27 00:45:01
  • What are arrays in PHP, and how do I create them?
    What are arrays in PHP, and how do I create them?
    An array in PHP is a container that stores multiple values, accessible via indexes or custom keys. 1. To create a basic array, you can use the array() function or phrase syntax []; 2. The index array automatically allocates numeric keys starting from 0; 3. Associative arrays allow custom keys such as "name" and "age"; 4. Multi-dimensional arrays can nest arrays in the array to achieve structured data storage; 5. Various types can be mixed in the array, and the content can be viewed by print_r or var_dump.
    PHP Tutorial . Backend Development 696 2025-06-27 00:25:01
  • What are the PHP online runtime tools?
    What are the PHP online runtime tools?
    There are several tools available for running PHP code directly on the Internet, including 3v4l.org, OnlinePHP.io, JDoodle, paiza.IO and Replit, which support quick testing of code snippets, debugging logic, learning new features and sharing code. 1.3v4l.org is suitable for testing compatibility of different PHP versions; 2. OnlinePHP.io interface is simple, easy to run and view results directly; 3. JDoodle and paiza.IO support multilingual development; 4. Replit functions are comprehensive, suitable for testing complex projects. These tools are available without registration, but are not recommended to process sensitive data or connect to real databases. In addition, some platforms may limit execution time and memory
    PHP Tutorial . Backend Development 470 2025-06-27 00:14:31

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