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- Programmatically cancel line items and update order status in Magento 2
- This article aims to help developers understand how to programmatically cancel specific items in orders in Magento 2 and automatically update the order status to "Cancelled" based on the quantity of cancelled items. The article will provide a code example and explain in detail how to implement this function correctly to ensure that the order status is in sync with the actual cancellation.
- PHP Tutorial . Backend Development 868 2025-08-24 17:36:01
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- Optimizing PHP Loop Performance: A Deep Dive into `for` vs. `foreach`
- foreachisgenerallyfasterandmoreefficientthanforinmodernPHPversionsduetoengine-leveloptimizations;2.forloopsprovidemorecontroloverindexingandarebetterforreverseorsteppediteration;3.foreachcreatesvaluecopiesbydefault,requiring&tomodifyoriginaleleme
- PHP Tutorial . Backend Development 772 2025-08-24 17:35:00
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- Api-Platform: Integrate custom PDF document download function for resources
- This article explores best practices for adding custom routing to existing resources such as invoices to provide non-standard output formats such as PDF documents in Api-Platform applications. By decoupling PDF generation logic to a standalone Symfony controller and exposing document access URLs in resource entities, the complexity of the Api-Platform serializer can be effectively avoided while maintaining system flexibility and maintainability.
- PHP Tutorial . Backend Development 323 2025-08-24 17:30:00
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- How does Symfony's Event Dispatcher component work?
- Symfony'sEventDispatcherimplementstheobserverpatterntoenableloosecouplingthroughevents.1.Eventsaredispatchedatkeymomentsusingadispatcherandaneventnamelike'user.login'.2.Listeners,registeredtospecificeventnames,reactbyexecutingcode,modifyingdata,orsto
- PHP Tutorial . Backend Development 219 2025-08-24 17:26:00
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- Cross-time zone data aggregation: Time processing strategies in MySQL and PHP
- This article aims to guide developers how to efficiently process time data across time zones in MySQL and PHP, especially when aggregation operations such as MIN/MAX are required based on the user-specified time zone. The article elaborates on the configuration and use of the MySQL CONVERT_TZ function, as well as the application of the PHP DateTime class, and provides specific code examples and best practice suggestions.
- PHP Tutorial . Backend Development 858 2025-08-24 17:24:01
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- How to work with JSON data in php
- Use json_decode() to convert JSON strings into PHP variables, json_encode() to convert PHP arrays or objects into JSON strings, pay attention to handling errors and formatting output.
- PHP Tutorial . Backend Development 455 2025-08-24 17:23:01
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- Safe and efficient removal of HTML tags and their content in PHP
- This tutorial details how to completely remove HTML tags and their wrapping content from strings using PHP's DOMDocument and DOMXPath libraries instead of just removing tags. By loading HTML strings and traversing and deleting all child nodes, precise content purification is achieved, while potential boundary situations and precautions are explored to ensure the accuracy of data processing.
- PHP Tutorial . Backend Development 207 2025-08-24 17:18:01
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- How to delete a cookie in php
- TodeleteacookieinPHP,usesetcookie()withapastexpirationtime;thebrowserremovesituponreceivingtheexpiredcookie.Thecookiename,path,anddomainmustmatchtheoriginalsettings.Forexample:setcookie("username","",time()-3600,"/admin"
- PHP Tutorial . Backend Development 164 2025-08-24 17:17:01
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- How to use file_put_contents in php
- The file_put_contents function is used to write files, and it will be automatically created if the file does not exist; use the FILE_APPEND flag to append content; the array needs to be converted with implode or json_encode; the return value processing errors need to be checked to ensure that the path and permissions are correct.
- PHP Tutorial . Backend Development 267 2025-08-24 17:15:00
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- Explain the concept of Fibers in PHP 8.1 and their impact on asynchronous programming.
- FibersinPHP8.1enablecooperativeconcurrencybyallowingfunctionstopauseandresumeexecution,providingawaytowriteasynchronouscodethatlookssynchronous.1.AFiberisauser-spacethreadthatrunsacallableandcansuspenditselfusingFiber::suspend(),yieldingcontrolbackto
- PHP Tutorial . Backend Development 487 2025-08-24 17:08:01
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- What is type juggling in PHP and how can it lead to security vulnerabilities?
- TypejugglinginPHPreferstoautomatictypeconversionduringcomparisonsusinglooseoperatorslike==,whichcanleadtounexpectedresultsandsecurityvulnerabilities.2.Thisbehaviorallowsattackerstoexploitloosecomparisonsinauthentication,suchasbypassinghashcheckswhens
- PHP Tutorial . Backend Development 603 2025-08-24 17:04:01
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- Convert nested Laravel form data into JSON strings and integrate them into requests
- This article details how to handle complex form submissions in Laravel applications, especially when some of the data needs to be stored in JSON format. We will learn how to convert nested array data (such as address information) in a request into a JSON string and append it as a separate field to the main request data array, thereby simplifying subsequent data processing and database storage.
- PHP Tutorial . Backend Development 819 2025-08-24 17:03:00
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- PHP string similarity comparison: use similar_text function
- This article describes how to use the similar_text function in PHP to compare the similarity of two strings. This function can not only calculate the number of similar characters, but also return a percentage value, indicating the similarity between two strings. With the example code, we will demonstrate how to use the similar_text function and explain how it works and precautions to help developers easily implement string similarity comparison functions in PHP projects.
- PHP Tutorial . Backend Development 699 2025-08-24 17:00:02
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- How to define constants in php
- ConstantsinPHParedefinedusingdefine()orconst;define()allowsdynamicdefinitionanywhere,whileconstrequiresglobalorclassscope.2.Constantsareaccessedbynamewithoutadollarsign.3.define()supportsconditionaldefinitionanddynamicvalues;constisforcompile-timecon
- PHP Tutorial . Backend Development 196 2025-08-24 16:56:00
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