yii1 findall as array listData - PHP

Introduction

In PHP, the Yii1 framework provides a powerful and efficient way to retrieve and manipulate data from a database. One of the most commonly used methods for retrieving data is findAll, which retrieves multiple rows of data from a database table.

The findAll method in Yii1 returns an array of model objects that match the specified condition. However, sometimes we may need to retrieve data in a different format, such as an associative array or a list of key-value pairs. For this purpose, Yii1 provides the listData method.

Code Example

// Retrieve multiple rows of data using `findAll`
$rows = ModelName::model()->findAll($condition);

// Convert the array of model objects into an associative array using `listData`
$data = CHtml::listData($rows, 'id', 'name');

In the above code example, we first retrieve multiple rows of data from a database table using the findAll method. We pass a $condition parameter to filter the results if needed.

Then, we use the listData method of the CHtml class to convert the array of model objects into an associative array. The listData method takes two additional parameters: the name of the attribute to use as the keys in the resulting array ('id' in this example) and the name of the attribute to use as the values in the resulting array ('name' in this example).

The resulting $data variable will now contain an associative array where the keys are the values of the 'id' attribute from the model objects, and the values are the values of the 'name' attribute from the model objects.

Conclusion

The combination of the findAll and listData methods in Yii1 provides a convenient way to retrieve and manipulate data from a database. By using these methods, you can easily convert an array of model objects into different formats, such as an associative array or a list of key-value pairs, based on your specific requirements.