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<?php
/** * Database core functions forthe MySQL legacy library * * Note: PHP version 5 states that the MySQL library is "Maintenance only, Long term deprecation announced." * It recommends using the PDO::MySQL or the MySQLi library instead. * * @package core */ // force UTF-8 Ø
define('DATABASE_SOFTWARE', 'MySQL'); Define('DATABASE_MIN_VERSION', '5.0.7'); Define('DATABASE_DESIRED_VERSION', '5.5.0');
/** * Connect to the database server and select the database. * @param array $config the db configuration parameters * @param bool $errorstop set to false to omit error messages * @return true if successful connection */ function db_connect($config, $errorstop = true) { global $_zp_DB_connection, $_zp_DB_details; $_zp_DB_details = unserialize(DB_NOT_CONNECTED); if (function_exists('mysql_connect')) { $_zp_DB_connection = @mysql_connect($config['mysql_host'], $config['mysql_user'], $config['mysql_pass']); } else { $_zp_DB_connection = NULL; } if (!$_zp_DB_connection) { if ($errorstop) { zp_error(sprintf(gettext('MySQL Error: Zenphoto received the error %s when connecting to the database server.'), mysql_error())); } return false; } $_zp_DB_details['mysql_host'] = $config['mysql_host']; if (!@mysql_select_db($config['mysql_database'])) { if ($errorstop) { zp_error(sprintf(gettext('MySQL Error: MySQL returned the error %1$s when Zenphoto tried to select the database %2$s.'), mysql_error(), $config['mysql_database'])); } return false; } $_zp_DB_details = $config; if (array_key_exists('UTF-8', $config) && $config['UTF-8']) { mysql_set_charset('utf8', $_zp_DB_connection); } // set the sql_mode to relaxed (if possible) @mysql_query('SET SESSION sql_mode="";'); return $_zp_DB_connection; }
/** * 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, $_zp_DB_details; if ($result = @mysql_query($sql, $_zp_DB_connection)) { return $result; } if ($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 false; }
/** * 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, $errorstop); if (is_resource($result)) { $row = mysql_fetch_assoc($result); mysql_free_result($result); 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, $errorstop); if (is_resource($result)) { $allrows = array(); if (is_null($key)) { while ($row = mysql_fetch_assoc($result)) { $allrows[] = $row; } } else { while ($row = mysql_fetch_assoc($result)) { $allrows[$row[$key]] = $row; } } mysql_free_result($result); return $allrows; } else { return false; } }
/** * mysql_real_escape_string standin that insures the DB connection is passed. * * @param string $string * @return string */ function db_quote($string) { global $_zp_DB_connection; return "'" . mysql_real_escape_string($string, $_zp_DB_connection) . "'"; }
/* * returns the insert id of the last database insert */
function db_insert_id() { return mysql_insert_id(); }
/* * Fetch a result row as an associative array */
function db_fetch_assoc($resource) { if ($resource) { return mysql_fetch_assoc($resource); } return false; }
/* * Returns the text of the error message from previous operation */
function db_error() { global $_zp_DB_connection; if (is_object($_zp_DB_connection)) { return mysql_error(); } if (!$msg = mysql_error()) $msg = sprintf(gettext('%s not connected'), DATABASE_SOFTWARE); return $msg; }
/* * Get number of affected rows in previous operation */
function db_affected_rows() { return mysql_affected_rows(); }
/* * Get a result row as an enumerated array */
function db_fetch_row($result) { if (is_resource($result)) { return mysql_fetch_row($result); } return false; }
/* * Get number of rows in result */
function db_num_rows($result) { return mysql_num_rows($result); }
/** * Closes the database */ function db_close() { global $_zp_DB_connection; if ($_zp_DB_connection) { $rslt = mysql_close($_zp_DB_connection); } else { $rslt = true; } $_zp_DB_connection = NULL; return $rslt; }
/* * report the software of the database */
function db_software() { $dbversion = trim(@mysql_get_server_info()); preg_match('/[0-9,\.]*/', $dbversion, $matches); return array('application' => DATABASE_SOFTWARE, 'required' => DATABASE_MIN_VERSION, 'desired' => DATABASE_DESIRED_VERSION, 'version' => $matches[0]); }
/** * create the database */ function db_create() { global $_zp_DB_details; $sql = 'CREATE DATABASE IF NOT EXISTS ' . '`' . $_zp_DB_details['mysql_database'] . '`' . db_collation(); return query($sql, false); }
/** * Returns user's permissions on the database */ function db_permissions() { global $_zp_DB_details; $sql = "SHOW GRANTS FOR " . $_zp_DB_details['mysql_user'] . ";"; $result = query($sql, false); if (!$result) { $result = query("SHOW GRANTS;", false); } if (is_resource($result)) { $db_results = array(); while ($onerow = db_fetch_row($result)) { $db_results[] = $onerow[0]; } return $db_results; } else { return false; } }
/** * Sets the SQL session mode to empty */ function db_setSQLmode() { return query('SET SESSION sql_mode=""', false); }
/** * Queries the SQL session mode */ function db_getSQLmode() { $result = query('SELECT @@SESSION.sql_mode;', false); if (is_resource($result)) { $row = db_fetch_row($result); return $row[0]; } return false; }
function db_collation() { $collation = ' CHARACTER SET utf8 COLLATE utf8_unicode_ci'; return $collation; }
function db_create_table(&$sql) { return query($sql, false); }
function db_table_update(&$sql) { return query($sql, false); }
function db_show($what, $aux = '') { global $_zp_DB_details; switch ($what) { case 'tables': $sql = "SHOW TABLES FROM `" . $_zp_DB_details['mysql_database'] . "` LIKE '" . db_LIKE_escape($_zp_DB_details['mysql_prefix']) . "%'"; return query($sql, false); case 'columns': $sql = 'SHOW FULL COLUMNS FROM `' . $_zp_DB_details['mysql_prefix'] . $aux . '`'; return query($sql, true); case 'variables': $sql = "SHOW VARIABLES LIKE '$aux'"; return query_full_array($sql); case 'index': $sql = "SHOW INDEX FROM `" . $_zp_DB_details['mysql_database'] . '`.' . $aux; return query_full_array($sql); } }
function db_list_fields($table) { $result = db_show('columns', $table); if (is_resource($result)) { $fields = array(); while ($row = db_fetch_assoc($result)) { $fields[] = $row; } return $fields; } else { return false; } }
function db_truncate_table($table) { global $_zp_DB_details; $sql = 'TRUNCATE ' . $_zp_DB_details['mysql_prefix'] . $table; return query($sql, false); }
function db_LIKE_escape($str) { return strtr($str, array('_' => '\\_', '%' => '\\%')); }
function db_free_result($result) { return mysql_free_result($result); }
?>
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