public function SelectInterface::getExpressions in Drupal 9

Same name and namespace in other branches

1. 8 core/lib/Drupal/Core/Database/Query/SelectInterface.php \Drupal\Core\Database\Query\SelectInterface::getExpressions()
2. 10 core/lib/Drupal/Core/Database/Query/SelectInterface.php \Drupal\Core\Database\Query\SelectInterface::getExpressions()

Returns a reference to the expressions array for this query.

Because this method returns by reference, alter hooks may edit the expressions array directly to make their changes. If just adding expressions, however, the use of addExpression() is preferred.

Note that this method must be called by reference as well:

$fields =& $query
  ->getExpressions();

Return value

A reference to the expression array structure.

2 methods override SelectInterface::getExpressions()

Select::getExpressions in core/lib/Drupal/Core/Database/Query/Select.php

Returns a reference to the expressions array for this query.

SelectExtender::getExpressions in core/lib/Drupal/Core/Database/Query/SelectExtender.php

Returns a reference to the expressions array for this query.

File

core/lib/Drupal/Core/Database/Query/SelectInterface.php, line 50

Class

SelectInterface

Interface definition for a Select Query object.

Namespace

Drupal\Core\Database\Query

Code

public function &getExpressions();