Flexible parameter passing in php_PHP tutorial
When making netizen comments, we usually display the title of the article in conjunction with the database and make a connection, and then connect the comments.
Here, because each article has different netizen comments, it is necessary to use The passing of parameters causes each article to display different comments.
//****** Read the database data and display the article title************
echo "" ;
?>
Then combine the database in Pj.php to read the data with the id value $id, which is the comment of the netizen of the article. $topic is used to output the title of the article.
Of course this method of delivery does not have to be used, this is just my humble opinion.

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ThebestapproachforsendingemailsinPHPisusingthePHPMailerlibraryduetoitsreliability,featurerichness,andeaseofuse.PHPMailersupportsSMTP,providesdetailederrorhandling,allowssendingHTMLandplaintextemails,supportsattachments,andenhancessecurity.Foroptimalu

The reason for using Dependency Injection (DI) is that it promotes loose coupling, testability, and maintainability of the code. 1) Use constructor to inject dependencies, 2) Avoid using service locators, 3) Use dependency injection containers to manage dependencies, 4) Improve testability through injecting dependencies, 5) Avoid over-injection dependencies, 6) Consider the impact of DI on performance.

PHPperformancetuningiscrucialbecauseitenhancesspeedandefficiency,whicharevitalforwebapplications.1)CachingwithAPCureducesdatabaseloadandimprovesresponsetimes.2)Optimizingdatabasequeriesbyselectingnecessarycolumnsandusingindexingspeedsupdataretrieval.


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