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Server : Apache System : Linux iZ2vcgyutqttsd1p850kl8Z 3.10.0-1160.92.1.el7.x86_64 #1 SMP Tue Jun 20 11:48:01 UTC 2023 x86_64 User : www ( 1000) PHP Version : 5.6.40 Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv Directory : /www/wwwroot/saimikebio.com/mobile/include/kernel/driver/ |
<?php
// +----------------------------------------------------------------------
// | EcTouch [ 专注移动电商: 商创网络科技 ]
// +----------------------------------------------------------------------
// | Copyright (c) 2014 http://ectouch.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: EcTouch Team <zhong@ecmoban.com> (QQ: 2880175560)
// +----------------------------------------------------------------------
class EcMysqli {
private $_writeLink = NULL; //主
private $_readLink = NULL; //从
private $_replication = false; //标志是否支持主从
private $dbConfig = array();
public $sql = "";
public function __construct($dbConfig = array()) {
$this->dbConfig = $dbConfig;
//判断是否支持主从
$this->_replication = isset($this->dbConfig['DB_SLAVE']) && !empty($this->dbConfig['DB_SLAVE']);
}
//执行sql查询
public function query($sql, $params = array()) {
foreach ($params as $k => $v) {
$sql = str_replace(':' . $k, $this->escape($v), $sql);
}
$this->sql = $sql;
if ($query = $this->_getReadLink()->query($sql))
return $query;
else
$this->error('MySQL Query Error', $this->_getReadLink()->error, $this->_getReadLink()->errno);
}
//执行sql命令
public function execute($sql, $params = array()) {
foreach ($params as $k => $v) {
$sql = str_replace(':' . $k, $this->escape($v), $sql);
}
$this->sql = $sql;
if ($query = $this->_getWriteLink()->query($sql))
return $query;
else
$this->error('MySQL Query Error', $this->_getWriteLink()->error, $this->_getWriteLink()->errno);
}
//从结果集中取得一行作为关联数组，或数字数组，或二者兼有
public function fetchArray($query, $result_type = MYSQLI_ASSOC) {
return $this->unEscape($query->fetch_array($result_type));
}
//取得前一次 MySQL 操作所影响的记录行数
public function affectedRows() {
return $this->_getWriteLink()->affected_rows;
}
//获取上一次插入的id
public function lastId() {
return $this->_getWriteLink()->insert_id;
}
//获取表结构
public function getFields($table) {
$this->sql = "SHOW FULL FIELDS FROM {$table}";
$query = $this->query($this->sql);
$data = array();
while ($row = $this->fetchArray($query)) {
$data[] = $row;
}
return $data;
}
//获取行数
public function count($table, $where) {
$this->sql = "SELECT count(*) FROM $table $where";
$query = $this->query($this->sql);
$data = $this->fetchArray($query);
return $data['count(*)'];
}
//数据过滤
public function escape($value) {
if (isset($this->_readLink)) {
$mysqli = $this->_readLink;
} elseif (isset($this->_writeLink)) {
$mysqli = $this->_writeLink;
} else {
$mysqli = $this->_getReadLink();
}
if (is_array($value)) {
return array_map(array($this, 'escape'), $value);
} else {
if (get_magic_quotes_gpc()) {
$value = stripslashes($value);
}
return "'" . $mysqli->real_escape_string($value) . "'";
}
}
//数据过滤
public function unEscape($value) {
if (is_array($value)) {
return array_map('stripslashes', $value);
} else {
return stripslashes($value);
}
}
//解析待添加或修改的数据
public function parseData($options, $type) {
//如果数据是字符串，直接返回
if (is_string($options['data'])) {
return $options['data'];
}
if (is_array($options) && !empty($options)) {
switch ($type) {
case 'add':
$data = array();
$data['fields'] = array_keys($options['data']);
$data['values'] = $this->escape(array_values($options['data']));
return " (`" . implode("`,`", $data['fields']) . "`) VALUES (" . implode(",", $data['values']) . ") ";
case 'save':
$data = array();
foreach ($options['data'] as $key => $value) {
$data[] = " `$key` = " . $this->escape($value);
}
return implode(',', $data);
default:return false;
}
}
return false;
}
//解析查询条件
public function parseCondition($options) {
$condition = "";
if (!empty($options['where'])) {
$condition = " WHERE ";
if (is_string($options['where'])) {
$condition .= $options['where'];
} else if (is_array($options['where'])) {
foreach ($options['where'] as $key => $value) {
$condition .= " `$key` = " . $this->escape($value) . " AND ";
}
$condition = substr($condition, 0, -4);
} else {
$condition = "";
}
}
if (!empty($options['group']) && is_string($options['group'])) {
$condition .= " GROUP BY " . $options['group'];
}
if (!empty($options['having']) && is_string($options['having'])) {
$condition .= " HAVING " . $options['having'];
}
if (!empty($options['order']) && is_string($options['order'])) {
$condition .= " ORDER BY " . $options['order'];
}
if (!empty($options['limit']) && (is_string($options['limit']) || is_numeric($options['limit']))) {
$condition .= " LIMIT " . $options['limit'];
}
if (empty($condition))
return "";
return $condition;
}
//输出错误信息
public function error($message = '', $error = '', $errorno = '') {
if (DEBUG) {
$str = " {$message}<br>
<b>SQL</b>: {$this->sql}<br>
<b>错误详情</b>: {$error}<br>
<b>错误代码</b>:{$errorno}<br>";
} else {
$str = "<b>出错</b>: $message<br>";
}
throw new Exception($str);
}
//获取从服务器连接
private function _getReadLink() {
if (isset($this->_readLink)) {
return $this->_readLink;
} else {
if (!$this->_replication) {
return $this->_getWriteLink();
} else {
$this->_readLink = $this->_connect(false);
return $this->_readLink;
}
}
}
//获取主服务器连接
private function _getWriteLink() {
if (isset($this->_writeLink)) {
return $this->_writeLink;
} else {
$this->_writeLink = $this->_connect(true);
return $this->_writeLink;
}
}
//数据库链接
private function _connect($is_master = true) {
if (($is_master == false) && $this->_replication) {
$slave_count = count($this->dbConfig['DB_SLAVE']);
//遍历所有从机
for ($i = 0; $i < $slave_count; $i++) {
$db_all[] = array_merge($this->dbConfig, $this->dbConfig['DB_SLAVE'][$i]);
}
$db_all[] = $this->dbConfig; //如果所有从机都连接不上，连接到主机
//随机选择一台从机连接
$rand = mt_rand(0, $slave_count - 1);
$db = array_unshift($db_all, $db_all[$rand]);
} else {
$db_all[] = $this->dbConfig; //直接连接到主机
}
foreach ($db_all as $db) {
$mysqli = @new mysqli($db['DB_HOST'], $db['DB_USER'], $db['DB_PWD'], $db['DB_NAME'], $db['DB_PORT']);
if ($mysqli->connect_errno == 0) {
break;
}
}
if ($mysqli->connect_errno) {
$this->error('无法连接到数据库服务器', $mysqli->connect_error, $mysqli->connect_errno);
}
//设置编码
$mysqli->query("SET NAMES {$db['DB_CHARSET']}");
return $mysqli;
}
//关闭数据库
public function __destruct() {
if ($this->_writeLink) {
$this->_writeLink->close();
}
if ($this->_readLink) {
$this->_readLink->close();
}
}
}