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<?php
/**
* database core functions for PDO implementations
* @package core
*/
// force UTF-8 Ø
/**
* The main query function. Runs the SQL on the connection and handles errors.
* @param string $sql sql code
* @param bool $errorstop set to false to supress the error message
* @return results of the sql statements
* @since 0.6
*/
function query($sql, $errorstop = true) {
global $_zp_DB_connection, $_zp_DB_last_result, $_zp_DB_details;
$_zp_DB_last_result = false;
try {
$_zp_DB_last_result = $_zp_DB_connection->query($sql);
} catch (PDOException $e) {
$_zp_DB_last_result = false;
}
if (!$_zp_DB_last_result && $errorstop) {
$sql = str_replace('`' . $_zp_DB_details['mysql_prefix'], '`[' . gettext('prefix') . ']', $sql);
$sql = str_replace($_zp_DB_details['mysql_database'], '[' . gettext('DB') . ']', $sql);
trigger_error(sprintf(gettext('%1$s Error: ( %2$s ) failed. %1$s returned the error %3$s'), DATABASE_SOFTWARE, $sql, db_error()), E_USER_ERROR);
}
return $_zp_DB_last_result;
}
/**
* Runs a SQL query and returns an associative array of the first row.
* Doesn't handle multiple rows, so this should only be used for unique entries.
* @param string $sql sql code
* @param bool $errorstop set to false to supress the error message
* @return results of the sql statements
* @since 0.6
*/
function query_single_row($sql, $errorstop = true) {
$result = query($sql, $errorstop);
if ($result) {
$row = db_fetch_assoc($result);
$result->closeCursor();
return $row;
} else {
return false;
}
}
/**
* Runs a SQL query and returns an array of associative arrays of every row returned.
* @param string $sql sql code
* @param bool $errorstop set to false to supress the error message
* @param string $key optional array index key
* @return results of the sql statements
* @since 0.6
*/
function query_full_array($sql, $errorstop = true, $key = NULL) {
$result = query($sql, $errorstop);
if ($result) {
$allrows = array();
if (is_null($key)) {
foreach ($result as $row) {
$allrows[] = $row;
}
} else {
foreach ($result as $row) {
$allrows[$row[$key]] = $row;
}
}
$result->closeCursor();
return $allrows;
} else {
return false;
}
}
/**
* sqlite_real_escape_string standin that insures the DB connection is passed.
*
* @param string $string
* @return string
*/
function db_quote($string) {
global $_zp_DB_connection;
return $_zp_DB_connection->quote($string);
}
/*
* returns the insert id of the last database insert
*/
function db_insert_id() {
global $_zp_DB_connection;
return $_zp_DB_connection->lastInsertId();
}
/*
* Fetch a result row as an associative array
*/
function db_fetch_assoc($resource) {
if (is_object($resource)) {
return $resource->fetch(PDO::FETCH_ASSOC);
}
return false;
}
/*
* Returns the text of the error message from previous operation
*/
function db_error() {
global $_zp_DB_last_result;
if (is_object($_zp_DB_last_result)) {
return $_zp_DB_last_result->getMessage();
} else {
return sprintf(gettext('%s not connected'), DATABASE_SOFTWARE);
}
}
/*
* Get number of affected rows in previous operation
*/
function db_affected_rows() {
global $_zp_DB_last_result;
if (is_object($_zp_DB_last_result)) {
return $_zp_DB_last_result->rowCount();
} else {
return 0;
}
}
/*
* Get a result row as an enumerated array
*/
function db_fetch_row($result) {
if (is_object($result)) {
return $result->fetch(PDO::FETCH_NUM);
}
return false;
}
/*
* Get number of rows in result
*/
function db_num_rows($result) {
if (is_array($result)) {
return count($result);
} else {
return $result->rowCount();
}
}
/**
* Closes the database
*/
function db_close() {
global $_zp_DB_connection;
$_zp_DB_connection = NULL;
return true;
}
function db_free_result($result) {
return $result->closeCursor();
}
?>
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