Nominatim/lib/db.php

<?php
	require_once('DB.php');

	function &getDB($bNew = false, $bPersistent = false)
	{
		// Get the database object
		$oDB = chksql(DB::connect(CONST_Database_DSN.($bNew?'?new_link=true':''), $bPersistent),
		              "Failed to establish database connection");
		$oDB->setFetchMode(DB_FETCHMODE_ASSOC);
		$oDB->query("SET DateStyle TO 'sql,european'");
		$oDB->query("SET client_encoding TO 'utf-8'");
		$iMaxExecution = ini_get('max_execution_time') * 1000;
		if ($iMaxExecution > 0) $oDB->query("SET statement_timeout TO $iMaxExecution");
		return $oDB;
	}

	function getDBQuoted($s)
	{
		return "'".pg_escape_string($s)."'";
	}

	function getPostgresVersion(&$oDB)
	{
		$sVersionString = $oDB->getOne('select version()');
		preg_match('#PostgreSQL ([0-9]+)[.]([0-9]+)[^0-9]#', $sVersionString, $aMatches);
		return (float) ($aMatches[1].'.'.$aMatches[2]);
	}

	function getPostgisVersion(&$oDB)
	{
		$sVersionString = $oDB->getOne('select postgis_full_version()');
		preg_match('#POSTGIS="([0-9]+)[.]([0-9]+)[.]([0-9]+)( r([0-9]+))?"#', $sVersionString, $aMatches);
		return (float) ($aMatches[1].'.'.$aMatches[2]);
	}