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sf-static/sql/lib/db/mysqli.php

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initial commit
2023-02-28 18:21:07 +00:00
<?php
/**
* This file is a part of MyWebSQL package
* A simple and easy to debug mysqli wrapper class
*
* @file: lib/db/mysqli.php
* @author Samnan ur Rehman
* @copyright (c) 2008-2014 Samnan ur Rehman
* @web http://mywebsql.net
* @license http://mywebsql.net/license
*/
if (defined("CLASS_DB_MYSQLI_INCLUDED"))
return true;
define("CLASS_DB_MYSQLI_INCLUDED", "1");
define("NOT_NULL_FLAG", 1); /* Field can't be NULL */
define("PRI_KEY_FLAG", 2); /* Field is part of a primary key */
define("UNIQUE_KEY_FLAG", 4); /* Field is part of a unique key */
define("MULTIPLE_KEY_FLAG", 8); /* Field is part of a key */
define("BLOB_FLAG", 16); /* Field is a blob */
define("UNSIGNED_FLAG", 32); /* Field is unsigned */
define("ZEROFILL_FLAG", 64); /* Field is zerofill */
define("BINARY_FLAG", 128); /* Field is binary */
define("ENUM_FLAG", 256); /* field is an enum */
define("AUTO_INCREMENT_FLAG", 512); /* field is a autoincrement field */
define("TIMESTAMP_FLAG", 1024); /* Field is a timestamp */
define("SET_FLAG", 2048); /* Field is a set */
class DB_Mysqli {
var $ip, $user, $password, $db;
var $conn;
var $result; // array
var $errMsg;
var $escapeData;
var $lastQuery;
var $queryTime;
// these help identify field definitions more clearly
var $field_types = array(
7 => 'datetime',
10 => 'date',
11 => 'time',
12 => 'datetime',
13 => 'year',
16 => 'bit',
246 => 'numeric'
);
function DB_Mysqli() {
$this->conn = null;
$this->errMsg = null;
$this->escapeData = true;
$this->result = array();
}
function name() {
return 'mysql';
}
function hasServer() {
return true;
}
function hasObject($type) {
switch($type) {
case 'table':
case 'view':
case 'procedure':
case 'function':
case 'trigger':
return true;
break;
case 'event':
if ( ((float)Session::get('db', 'version_full')) >= 5.1 )
return true;
break;
}
return false;
}
function getObjectTypes() {
$types = array(
'tables', 'views', 'procedures', 'functions', 'triggers'
);
if ($this->hasObject('event'))
$types[] = 'events';
return $types;
}
function getObjectList( $details = false ) {
$data = array(
'tables' => $this->getTables( $details ),
'views' => $this->getViews(),
'procedures' => $this->getProcedures(),
'functions' => $this->getFunctions(),
'triggers' => $this->getTriggers(),
);
if ($this->hasObject('event'))
$data['events'] = $this->getEvents();
return $data;
}
function getBackQuotes() {
return '`';
}
function getQuotes() {
return '"';
}
function getStandardDbList() {
return array( 'information_schema', 'performance_schema', 'mysql', 'test' );
}
function setAuthOptions($options) {
}
function connect($ip, $user, $password, $db="") {
if (!function_exists('mysqli_connect')) {
return $this->error(str_replace('{{NAME}}', 'MySQLi', __('{{NAME}} client library is not installed')));
}
$this->conn = @mysqli_connect($ip, $user, $password);
if (!$this->conn)
return $this->error(__('Database connection failed to the server'));
if ($db && !@mysqli_select_db($this->conn, $db))
return $this->error(mysqli_error($this->conn));
$this->ip = $ip;
$this->user = $user;
$this->password = $password;
$this->db = $db;
$this->selectVersion();
$this->query("SET CHARACTER SET 'utf8'");
$this->query("SET collation_connection = 'utf8_general_ci'");
return true;
}
function disconnect() {
@mysqli_close($this->conn);
$this->conn = false;
return true;
}
function getCurrentUser() {
if ($this->query('select user()')) {
$row = $this->fetchRow();
return $row[0];
}
return '';
}
function selectDb($db) {
$this->db = $db;
mysqli_select_db($this->conn, $this->db);
}
function createDatabase( $name ) {
$sql = "create database `".$this->escape($name)."`";
return $this->query($sql);
}
function query($sql, $stack=0) { // call with query($sql, 1) to store multiple results
if (!$this->conn) {
log_message("DB: Connection has been closed");
return false;
}
if (v($this->result[$stack]))
@mysqli_free_result($this->result[$stack]);
$this->result[$stack] = "";
$this->lastQuery = $sql;
$this->queryTime = $this->getMicroTime();
$this->result[$stack] = @mysqli_query($this->conn, $sql);
$this->queryTime = $this->getMicroTime() - $this->queryTime;
if ($this->result[$stack] === FALSE) {
$this->errMsg = mysqli_error($this->conn);
log_message("DB: $sql ::: ".@mysqli_error($this->conn));
return false;
}
return true;
}
function getWarnings() {
$ret = array();
$res = mysqli_query($this->conn, "SHOW WARNINGS");
if ($res !== FALSE) {
while($row = mysqli_fetch_array($res))
$ret[$row['Code']] = $row['Message'];
}
return $ret;
}
function getQueryTime($time=false) { // returns formatted given value or internal query time
return sprintf("%.2f", ($time ? $time : $this->queryTime) * 1000) . " ms";
}
function hasAffectedRows() {
return ($this->getAffectedRows() > 0);
}
function insert($table, $values) {
if (!is_array($values))
return false;
$sql = "insert into $table (";
foreach($values as $field=>$value)
$sql .= " $field,";
$sql = substr($sql, 0, strlen($sql) - 1);
$sql .= ") values (";
foreach($values as $field=>$value) {
if ($this->escapeData)
$sql .= "'" . $this->escape($value) . "',";
else
$sql .= "'$value',";
}
$sql = substr($sql, 0, strlen($sql) - 1);
$sql .= ")";
$this->query($sql);
}
function update($table, $values, $condition="") {
if (!is_array($values))
return false;
$sql = "update $table set ";
foreach($values as $field=>$value) {
if ($this->escapeData)
$sql .= "$field = '" . $this->escape($field) . "',";
else
$sql .= "$field = '$value',";
}
$sql = substr($sql, 0, strlen($sql) - 1);
if ($condition != "")
$sql .= "$condition";
$this->query($sql);
}
function getInsertID() {
return mysqli_insert_id($this->conn);
}
function getResult($stack=0) {
return $this->result[$stack];
}
function hasResult($stack=0) {
return (is_object($this->result[$stack])); // !== FALSE && $this->result[$stack] !== TRUE);
}
function fetchRow($stack=0, $type="") {
if($type == "")
$type = MYSQLI_BOTH;
else if ($type == "num")
$type = MYSQLI_NUM;
else if ($type == "assoc")
$type = MYSQLI_ASSOC;
if (!$this->result[$stack]) {
log_message("DB: called fetchRow[$stack] but result is false");
return;
}
return @mysqli_fetch_array($this->result[$stack], $type);
}
function fetchSpecificRow($num, $type="", $stack=0) {
if($type == "")
$type = MYSQL_BOTH;
else if ($type == "num")
$type = MYSQLI_NUM;
else if ($type == "assoc")
$type = MYSQLI_ASSOC;
if (!$this->result[$stack]) {
log_message("DB: called fetchSpecificRow[$stack] but result is false");
return;
}
mysqli_data_seek($this->result[$stack], $num);
return @mysqli_fetch_array($this->result[$stack], $type);
}
function numRows($stack=0) {
return mysqli_num_rows($this->result[$stack]);
}
function error($str) {
log_message("DB: " . $str);
$this->errMsg = $str;
return false;
}
function getError() {
return $this->errMsg;
}
function escape($str) {
return mysqli_escape_string($this->conn, $str);
}
function quote($str) {
if(strpos($str, '.') === false)
return '`' . $str . '`';
return '`' . str_replace('.', '`.`', $str) . '`';
}
function setEscape($escape=true) {
$this->escapeData = $escape;
}
function getAffectedRows() {
return mysqli_affected_rows($this->conn);
}
/**************************************/
function getDatabases() {
$res = mysqli_query($this->conn, "show databases");
$ret = array();
while($row = mysqli_fetch_array($res))
$ret[] = $row[0];
return $ret;
}
function getTables( $details = false ) {
if (!$this->db)
return array();
$res = mysqli_query($this->conn, "show table status from `$this->db` where engine is NOT null");
$ret = array();
while($row = mysqli_fetch_array($res, MYSQLI_ASSOC)) {
$ret[] = $details ? array(
$row['Name'], // table name
$row['Rows'], // number of records,
$row['Data_length'] + $row['Index_length'], // size of the table
(empty($row['Update_time']) ? $row['Create_time'] : $row['Update_time'] ), // last update timestamp
) : $row['Name'];
}
return $ret;
}
function getViews() {
if (!$this->db)
return array();
$res = mysqli_query($this->conn, "show table status from `$this->db` where engine is null");
if (!$res)
return array();
$ret = array();
while($row = mysqli_fetch_array($res))
$ret[] = $row[0];
return $ret;
}
function getProcedures() {
if (!$this->db)
return array();
$res = mysqli_query($this->conn, "show procedure status where db = '$this->db'");
if (!$res)
return array();
$ret = array();
while($row = mysqli_fetch_array($res))
$ret[] = $row[1];
return $ret;
}
function getFunctions() {
if (!$this->db)
return array();
$res = mysqli_query($this->conn, "show function status where db = '$this->db'");
if (!$res)
return array();
$ret = array();
while($row = mysqli_fetch_array($res))
$ret[] = $row[1];
return $ret;
}
function getTriggers() {
if (!$this->db)
return array();
$res = mysqli_query($this->conn, "select `TRIGGER_NAME` from `INFORMATION_SCHEMA`.`TRIGGERS` where `TRIGGER_SCHEMA` = '$this->db'");
if (!$res)
return array();
$ret = array();
while($row = mysqli_fetch_array($res))
$ret[] = $row[0];
return $ret;
}
function getEvents() {
if (!$this->db)
return array();
$res = mysqli_query($this->conn, "select `EVENT_NAME` from `INFORMATION_SCHEMA`.`EVENTS` where `EVENT_SCHEMA` = '$this->db'");
if (!$res)
return array();
$ret = array();
while($row = mysqli_fetch_array($res))
$ret[] = $row[0];
return $ret;
}
/**************************************/
function getFieldInfo($stack=0) {
$fields = array();
$i = 0;
while ($i < mysqli_num_fields($this->result[$stack])) {
$meta = mysqli_fetch_field_direct($this->result[$stack], $i);
if ($meta) {
$f = new StdClass;
$f->name = $meta->name;
$f->table = $meta->table;
$f->not_null = ($meta->flags & NOT_NULL_FLAG) ? 1 : 0;
$f->blob = ($meta->flags & BLOB_FLAG) ? 1 : 0;
$f->pkey = ($meta->flags & PRI_KEY_FLAG) ? 1 : 0;
$f->ukey = ($meta->flags & UNIQUE_KEY_FLAG) ? 1 : 0;
$f->mkey = ($meta->flags & MULTIPLE_KEY_FLAG) ? 1 : 0;
$f->zerofill = ($meta->flags & ZEROFILL_FLAG) ? 1 : 0;
$f->unsigned = ($meta->flags & UNSIGNED_FLAG) ? 1 : 0;
$f->autoinc = ($meta->flags & AUTO_INCREMENT_FLAG) ? 1 : 0;
$f->numeric = $meta->type < 10 ? 1 : 0;
if (isset($this->field_types[$meta->type]))
$f->type = $this->field_types[$meta->type];
else if ($meta->flags & ENUM_FLAG)
$f->type = 'enum';
else if ($meta->flags & SET_FLAG)
$f->type = 'set';
else if ($meta->flags & TIMESTAMP_FLAG)
$f->type = "timestamp";
else if ($meta->flags & BINARY_FLAG)
$f->type = 'binary';
else if ($meta->type < 10)
$f->type = 'numeric';
else
$f->type = 'text';
if ($f->type == 'enum' || $f->type == 'set')
$f->list = $this->getFieldValues($f->table, $f->name);
else if ($f->type == 'bit')
$f->list = array('0', '1');
$fields[] = $f;
}
$i++;
}
return $fields;
}
function getMicroTime() {
list($usec, $sec) = explode(" ",microtime());
return ((float)$usec + (float)$sec);
}
function selectVersion() {
$res = mysqli_query($this->conn, "SHOW VARIABLES LIKE 'version%'");
while($row = mysqli_fetch_array($res)) {
if ($row[0] == 'version') {
Session::set('db', 'version', intval($row[1]));
Session::set('db', 'version_full', $row[1]);
} else if ($row[0] == 'version_comment') {
Session::set('db', 'version_comment', $row[1]);
}
}
}
function getCreateCommand($type, $name) {
$cmd = '';
$type = $this->escape($type);
$name = $this->escape($name);
if ($type == "trigger")
$sql = "show triggers where `trigger` = '$name'";
else
$sql = "show create $type `$name`";
if (!$this->query($sql) || $this->numRows() == 0)
return '';
$row = $this->fetchRow();
if ($type == "trigger")
$cmd = "create trigger `$row[0]`\r\n$row[4] $row[1] on `$row[2]`\r\nfor each row\r\n$row[3]";
else {
switch($type) {
case 'table':
case 'view':
$cmd = $row[1];
break;
case 'procedure':
case 'function':
$cmd = $row[2];
break;
case 'event':
$cmd = $row[3];
break;
}
}
return $cmd;
}
function getDropCommand( $table ) {
return "drop table if exists " . $this->quote( $table );
}
function getTruncateCommand( $table ) {
return 'truncate table ' . $this->quote( $table );
}
function getFieldValues($table, $name) {
$sql = 'show full fields from `'.$table.'` where `Field` = \''.$this->escape($name).'\'';
$res = mysqli_query($this->conn, $sql);
if (mysqli_num_rows($res) == 0)
return ( (object) array('list' => array()) );
$row = mysqli_fetch_array($res);
$type = $row['Type'];
preg_match('/enum\((.*)\)$/', $type, $matches);
if (!isset($matches[1]))
preg_match('/set\((.*)\)$/', $type, $matches);
if (isset($matches[1])) {
if (phpCheck(5.3)) {
$regex = "/\('(.*)'\)/";
preg_match_all($regex, $row['Type'], $list);
return array_map('replace_single_quotes', explode("','", $list[1][0]));
} else {
$list = explode(',', $matches[1]);
foreach($list as $k => $v)
$list[$k] = str_replace("\\'", "'", trim($v, " '"));
return $list;
}
}
return ( (object) array('list' => array()) );
}
function getEngines() {
$sql = 'show engines';
$res = mysqli_query($this->conn, $sql);
if (mysqli_num_rows($res) == 0)
return ( array() );
$arr = array();
while($row = mysqli_fetch_array($res))
if ($row['Support'] != 'NO')
$arr[] = $row['Engine'];
return $arr;
}
function getCharsets() {
$sql = 'show character set';
$res = mysqli_query($this->conn, $sql);
if (mysqli_num_rows($res) == 0)
return ( array() );
$arr = array();
while($row = mysqli_fetch_array($res))
$arr[] = $row['Charset'];
asort($arr);
return $arr;
}
function getCollations() {
$sql = 'show collation';
$res = mysqli_query($this->conn, $sql);
if (mysqli_num_rows($res) == 0)
return ( array() );
$arr = array();
while($row = mysqli_fetch_array($res))
$arr[] = $row['Collation'];
asort($arr);
return $arr;
}
function getTableFields($table) {
$sql = "show full fields from ".$this->quote($table);
if (!$this->query($sql, "_temp"))
return array();
$fields = array();
while($row = $this->fetchRow("_temp")) {
$f = new StdClass;
$f->type = $row['Type'];
$f->name = $row['Field'];
$fields[] = $f;
}
return $fields;
}
function getTableProperties($table) {
$sql = "show table status where `Name` like '".$this->escape($table)."'";
if (!$this->query($sql, "_tmp_query"))
return FALSE;
return $this->fetchRow("_tmp_query");
}
function queryTableStatus() {
$sql = "show table status where Engine is not null";
return $this->query($sql);
}
function getTableDescription( $table ) {
$sql = "describe " . $this->quote( $table );
return $this->query($sql);
}
function flush($option = '', $skiplog=false) {
$options = array('HOSTS', 'PRIVILEGES', 'TABLES', 'STATUS', 'DES_KEY_FILE', 'QUERY CACHE', 'USER_RESOURCES', 'TABLES WITH READ LOCK');
if ($option == '') {
foreach($options as $option) {
$sql = "flush " . ( $skiplog ? "NO_WRITE_TO_BINLOG " : "") . $this->escape($option);
$this->query($sql, '_temp_flush');
}
$this->query('UNLOCK TABLES', '_temp_flush');
} else {
$sql = "flush " . ( $skiplog ? "NO_WRITE_TO_BINLOG " : "") . $this->escape($option);
$this->query($sql, '_temp_flush');
if ($option == 'TABLES WITH READ LOCK')
$this->query('UNLOCK TABLES', '_temp_flush');
}
return true;
}
function getLastQuery() {
return $this->lastQuery;
}
function getInsertStatement($tbl) {
$sql = "show full fields from `$tbl`";
if (!$this->query($sql, '_insert'))
return false;
$str = "INSERT INTO `".$tbl."` (";
$num = $this->numRows('_insert');
$row = $this->fetchRow('_insert');
$str .= "`" . $row[0] . "`";
if ($row["Extra"] == "auto_increment")
$str2 = " VALUES (NULL";
else
$str2 = " VALUES (\"\"";
for($i=1; $i<$num; $i++) {
$row = $this->fetchRow('_insert');
$str .= ",`" . $row[0] . "`";
if ($row["Extra"] == "auto_increment")
$str2 .= ",NULL";
//else if (strpos($row["Type"], "int") !== false)
// $str2 .= ", "; // for numeric fields
else
$str2 .= ",\"\"";
}
$str .= ")";
$str2 .= ")";
return $str.$str2;
}
function getUpdateStatement($tbl) {
$sql = "show full fields from `".$this->escape($tbl)."`";
if (!$this->query($sql, '_update'))
return false;
$pKey = ''; // if a primary key is available, this helps avoid multikey attributes in where clause
$str2 = "";
$str = "UPDATE `".$tbl."` SET ";
$num = $this->numRows('_update');
$row = $this->fetchRow('_update');
$str .= "`" . $row[0] . "`=\"\"";
if ($row["Key"] != "")
$str2 .= "`$row[0]`=\"\"";
if ($row["Key"] == 'PRI')
$pKey = $row[0];
for($i=1; $i<$num; $i++) {
$row = $this->fetchRow('_update');
$str .= ",`" . $row[0] . "`=\"\"";
if ($row["Key"] != "") {
if ($row["Key"] == 'PRI')
$pKey = $row[0];
if ($str2 != "")
$str2 .= " AND ";
$str2 .= "`$row[0]`=\"\"";
}
}
// if we found a primary key, then use it only for where clause and discard other keys
if ($pKey != '')
$str2 = "`$pKey`=\"\"";
if ($str2 != "")
$str2 = " WHERE " . $str2;
return $str . $str2;
}
function truncateTable($tbl) {
return $this->query('truncate table '.$this->quote($tbl));
}
function renameObject($name, $type, $new_name) {
$result = false;
if($type == 'table') {
$query = 'rename '.$this->escape($type).' `'.$this->escape($name).'` to `'.$this->escape($new_name).'`';
$result = $this->query($query);
}
else {
$command = $this->getCreateCommand($type, $name);
$search = '/(create.*'.$type. ' )('.$name.'|\`'.$name.'\`)/i';
$replace = '${1} `'.$new_name.'`';
$query = preg_replace($search, $replace, $command, 1);
if ($this->query($query)) {
$query = 'drop '.$this->escape($type).' `'.$this->escape($name).'`';
$result = $this->query($query);
}
}
return $result;
}
function dropObject($name, $type) {
$result = false;
$query = 'drop '.$this->escape($type).' `'.$this->escape($name).'`';
$result = $this->query($query);
return $result;
}
function copyObject($name, $type, $new_name) {
$result = false;
if($type == 'table') {
$query = 'create '.$this->escape($type).' `' . $this->escape($new_name) . '` like `' . $this->escape($name) . '`';
$result = $this->query($query);
if ($result) {
$query = 'insert into `' . $this->escape($new_name) . '` select * from `' . $this->escape($name) . '`';
$result = $this->query($query);
}
}
else {
$command = $this->getCreateCommand($type, $name);
$search = '/(create.*'.$type. ' )('.$name.'|\`'.$name.'\`)/i';
$replace = '${1} `'.$new_name.'`';
$query = preg_replace($search, $replace, $command, 1);
$result = $this->query($query);
}
return $result;
}
function getAutoIncField($table) {
$sql = "show full fields from `".$this->escape($table)."`";
if (!$this->query($sql, "_temp"))
return false;
$i = 0;
while($row = $this->fetchRow("_temp")) {
if (strpos($row["Extra"], "auto_increment") !== false) {
return $i;
}
$i++;
}
return -1;
}
function queryVariables() {
return $this->query("SHOW VARIABLES");
}
function getLimit($count, $offset = 0) {
return " limit $offset, $count";
}
function addExportHeader( $name, $obj = 'db', $type='insert' ) {
$str = '';
switch($type) {
case 'insert':
if ( $obj == 'db' ) {
$str = "/* Database export results for db ".$name." */\n";
$str .= "\n/* Preserve session variables */\nSET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS;\nSET FOREIGN_KEY_CHECKS=0;\n\n/* Export data */\n";
} else if ( $obj == 'table' ) {
$str = "/* Table data export for table ".$name." */\n";
$str .= "\n/* Preserve session variables */\nSET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS;\nSET FOREIGN_KEY_CHECKS=0;\n\n/* Export data */\n";
} else if ( $obj == 'query' ) {
$str = "/* Export results for query data */\n";
$str .= "/* Query: \n".$name."\n*/\n";
$str .= "\n/* Preserve session variables */\nSET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS;\nSET FOREIGN_KEY_CHECKS=0;\n\n/* Export data */\n";
}
break;
}
return $str;
}
function addExportFooter( $type='insert' ) {
if ($type == 'insert')
return "\n/* Restore session variables to original values */\nSET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;\n";
return '';
}
function set_constraint( $constraint, $value ) {
switch ($constraint) {
case 'fkey':
$this->query('SET FOREIGN_KEY_CHECKS=' . ($value ? '1' : '0') );
break;
}
}
}
?>
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