function db_like

Escapes characters that work as wildcard characters in a LIKE pattern.

The wildcard characters "%" and "_" as well as backslash are prefixed with a backslash. Use this to do a search for a verbatim string without any wildcard behavior.

For example, the following does a case-insensitive query for all rows whose name starts with $prefix:

$result = db_query('SELECT * FROM person WHERE name LIKE :pattern', array(
  ':pattern' => db_like($prefix) . '%',
));

Backslash is defined as escape character for LIKE patterns in DatabaseCondition::mapConditionOperator().

Parameters

$string: The string to escape.

Return value

The escaped string.

Related topics

File

drupal/includes/database/database.inc, line 2669

Core systems for the database layer.

Code

function db_like($string) {
  return Database::getConnection()
    ->escapeLike($string);
}