Example Analysis of data Operation in ThinkPHP

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The details are as follows:

Template to use functions, I believe that most of the TPer know also used it.

Case study:

The method of getting the user name

Function get_username ($uid) {$row = M ('User')-> getbyUid ($uid); return $row [' username'];}

Display the user name through uid in the template

{$row.uid} {$row.uid | get_username}

I believe this method is very commonly used by everyone, right? There are two disadvantages to this usage:

1. Too many database operations

2. The location of data operation is unreasonable and the database connection is too long.

Optimization scheme:

1. Merge database operations as much as possible

2. Data operations should be kept in the data layer and avoid operating the database in the view as much as possible. It is recommended to execute mysql_close () before the view starts to disconnect the database.

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