How to get data from two different table in cake php

问题

But it will give return same data from tab[1] only.. i want to get data from tab[1] and tab[0] distinctly

$db = ConnectionManager::getDataSource('default');

$tab = $db->listSources();

        echo '<br>';
        $this->Form->useTable=$tab[1];
        print_r($this->Form->find(`all'));
        echo '<br>';
        $this->Form->use Table=$tab[0];
        print_r($this->Form->find('all'));

回答1:

Changing Model->useTable at runtime does not work properly because once a model has been initialised, CakePHP caches the schema of the database-table.

To switch to another table and clear the cached schema, use Model->setSource('tablename')

Documentation; http://api.cakephp.org/2.3/source-class-Model.html#1100-1125

Your example will then look like this;

echo '<br>';
$this->Form->setSource($tab[1]);
print_r($this->Form->find(`all'));
echo '<br>';
$this->Form->setSource($tab[0]);
print_r($this->Form->find('all'));

Also, please use debug() to output results for debugging in stead of print_r(). This will output the results properly formatted. (You'll need to set debug to 1 or higher inside your app/Config/core.php configuration for debug() to work)

however

Switching the sourcetable of a Model is generally bad practice and will only apply to very specific cases. I would strongly suggest to create a separate model for each database table.

来源：https://stackoverflow.com/questions/15403655/how-to-get-data-from-two-different-table-in-cake-php