lib/Doctrine/DBAL/Schema/AbstractSchemaManager.php
public function dropForeignKey($foreignKey, $table)
    {
        $this->_execSql($this->_platform->getDropForeignKeySQL($foreignKey, $table));
    }
public function dropForeignKey($foreignKey, $table)
    {
        $this->_execSql($this->_platform->getDropForeignKeySQL($foreignKey, $table));
    }
public function dropForeignKey ( $ foreignKey , $ table ) { $ this -> _execSql ( $ this -> _platform -> getDropForeignKeySQL ( $ foreignKey , $ table ) ) ; }
Drops a foreign key from a table.

@param ForeignKeyConstraint|string $foreignKey The name of the foreign key.
@param Table|string                $table      The name of the table with the foreign key.

@return void
Drops a foreign key from a table .