用于更改多个数据库的PHP脚本

i just want to know if exists a php script where i

1 - setup a mysql connection ( host,user,password )

2 - visually select databases i want to alter

3 - set sql statements ( from .sql file or text on web form )

4 - execute specified sql statements on all selected databases

problem to solve :: i have +100 databases with same structure on same server, executing a simple "ALTER TABLE" on each database is a boring / time-loss task, iam currently doing this manually with phpMyAdmin, but i know exists a better way.

I think you are referring to the phpmyadmin

I'm not sure what pre-fab script could exist, but you are looking at a one-shot thing, are you not? Why not just write a script?

It would look something like this (pseudo code)

$yourDatabases = array($database1, $databas2, ....);

foreach($yourDatabases as $database){
    connect($database);
    query("your alter table");
    close($database);
}