How to modify the database in php

How to modify the database in php: first connect to the mysql database through the account and password; then modify the specified content of the database by executing the command "update users set..."; and finally judge the modification result.

The operating environment of this tutorial: Windows 7 system, PHP version 7.1, Dell G3 computer.

Recommended: "PHP Video Tutorial"

PHP Simple implementation of modifying data

index.php

      
  
 " ; echo ""; echo ""; $id=$row['id']; echo ""; echo " "; } ?> 
 
 
id
 
name
 
操作
 
 
".$row['id']."
".$row['username']."
修改
 
   update.php       
  
 username:>
  
  

doUpdate.php

 alert('修改成功'); location.href='index.php' "); }else{ exit(""); } ?>

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