\u516c\u53f8\u9879\u76ee\uff0c\u4f7f\u7528\u7684 ThinkPHP 3\u6846\u67b6\uff0c\u9047\u5230\u4e2amysql \u7684\u62a5\u9519\uff1a<\/p>\n\n\n\n
2006 MySQL server has gone away<\/code><\/pre>\n\n\n\n\u4e00\u987f\u641c\u7d22\u4e4b\u540e\uff08https:\/\/blog.csdn.net\/xiaomei_haimi\/article\/details\/81087037\uff09\uff0c\u5728\u67e5\u770b show global variables like '%timeout'; \u65f6\u53d1\u73b0\uff0cwait_timeout \u4e3a 4 \u79d2\u3002\u52a0\u5165\u4e00\u4e9b\u68c0\u67e5\u540e\u53d1\u73b0\uff0c\u62a5\u9519\u7684 SQL\uff0c\u6709\u4e4b\u524d\u7684\u4e00\u4e2a\u76f8\u5dee\u4e86 5~6 \u79d2\u3002\u95ee\u9898\u627e\u5230\uff0c\u5f00\u59cb\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n\n\n\n
\u60f3\u5230\u7684\u529e\u6cd5\u662f\uff0c\u5728\u53d1\u73b0mysql \u62a5 2006 \u4e4b\u540e\uff0c\u6a21\u4eff TP 5\u4e2d\u7684\u4f5c\u6cd5\uff0c\u52a0\u5165\u91cd\u8fde\u3002 \u5728 Library\\Think\\Db\\Driver\\Mysqli.class.php \u4e2d\uff0cquery \u548c excute \u65b9\u6cd5\u8fdb\u884c\u4fee\u6539\uff1a<\/p>\n\n\n\n
<?php\n\/\/ +----------------------------------------------------------------------\n\/\/ | ThinkPHP [ WE CAN DO IT JUST THINK IT ]\n\/\/ +----------------------------------------------------------------------\n\/\/ | Copyright (c) 2007 http:\/\/thinkphp.cn All rights reserved.\n\/\/ +----------------------------------------------------------------------\n\/\/ | Licensed ( http:\/\/www.apache.org\/licenses\/LICENSE-2.0 )\n\/\/ +----------------------------------------------------------------------\n\/\/ | Author: liu21st <liu21st@gmail.com>\n\/\/ +----------------------------------------------------------------------\nnamespace Think\\Db\\Driver;\nuse Think\\Db;\ndefined('THINK_PATH') or exit();\n\/**\n * Mysqli\u6570\u636e\u5e93\u9a71\u52a8\u7c7b\n *\/\nclass Mysqli extends Db{\n\t\n\tprotected $isBreak = false;\n\t\n\t\n\n \/**\n * \u67b6\u6784\u51fd\u6570 \u8bfb\u53d6\u6570\u636e\u5e93\u914d\u7f6e\u4fe1\u606f\n * @access public\n * @param array $config \u6570\u636e\u5e93\u914d\u7f6e\u6570\u7ec4\n *\/\n public function __construct($config=''){\n if ( !extension_loaded('mysqli') ) {\n E(L('_NOT_SUPPERT_').':mysqli');\n }\n if(!empty($config)) {\n $this->config = $config;\n if(empty($this->config['params'])) {\n $this->config['params'] = '';\n }\n }\n }\n\n \/**\n * \u8fde\u63a5\u6570\u636e\u5e93\u65b9\u6cd5\n * @access public\n * @throws ThinkExecption\n *\/\n public function connect($config='',$linkNum=0) {\n if ( !isset($this->linkID[$linkNum]) ) {\n if(empty($config)) $config = $this->config;\n $this->linkID[$linkNum] = new \\mysqli($config['hostname'],$config['username'],$config['password'],$config['database'],$config['hostport']?intval($config['hostport']):3306);\n if (mysqli_connect_errno()) E(mysqli_connect_error());\n $dbVersion = $this->linkID[$linkNum]->server_version;\n \n \/\/ \u8bbe\u7f6e\u6570\u636e\u5e93\u7f16\u7801\n $this->linkID[$linkNum]->query(\"SET NAMES '\".$config['charset'].\"'\");\n \/\/\u8bbe\u7f6e sql_model\n if($dbVersion >'5.0.1'){\n $this->linkID[$linkNum]->query(\"SET sql_mode=''\");\n }\n \/\/ \u6807\u8bb0\u8fde\u63a5\u6210\u529f\n $this->connected = true;\n \/\/\u6ce8\u9500\u6570\u636e\u5e93\u5b89\u5168\u4fe1\u606f\n if(1 != C('DB_DEPLOY_TYPE')) unset($this->config);\n }\n return $this->linkID[$linkNum];\n }\n\n \/**\n * \u91ca\u653e\u67e5\u8be2\u7ed3\u679c\n * @access public\n *\/\n public function free() {\n if(is_object($this->queryID)){\n $this->queryID->free_result();\n }\n $this->queryID = null;\n }\n\n \/**\n * \u6267\u884c\u67e5\u8be2 \u8fd4\u56de\u6570\u636e\u96c6\n * @access public\n * @param string $str sql\u6307\u4ee4\n * @return mixed\n *\/\n public function query($str) {\n $this->initConnect(false);\n if ( !$this->_linkID ) return false;\n $this->queryStr = $str;\n \/\/\u91ca\u653e\u524d\u6b21\u7684\u67e5\u8be2\u7ed3\u679c\n if ( $this->queryID ) $this->free();\n N('db_query',1);\n \/\/ \u8bb0\u5f55\u5f00\u59cb\u6267\u884c\u65f6\u95f4\n G('queryStartTime');\n $this->queryID = $this->_linkID->query($str);\n \/\/ \u5bf9\u5b58\u50a8\u8fc7\u7a0b\u6539\u8fdb\n if( $this->_linkID->more_results() ){\n while (($res = $this->_linkID->next_result()) != NULL) {\n $res->free_result();\n }\n }\n $this->debug();\n if ( false === $this->queryID ) {\n\t\t\tif ($this->_linkID->errno == 2006 && !$this->isBreak){\n\t\t\t\t$this->isBreak = true;\n\t\t\t\t$this->close();\n\t\t\t\treturn $this->query($str);\n\t\t\t}\n $this->error();\n return false;\n } else {\n $this->numRows = $this->queryID->num_rows;\n $this->numCols = $this->queryID->field_count;\n return $this->getAll();\n }\n }\n\n \/**\n * \u6267\u884c\u8bed\u53e5\n * @access public\n * @param string $str sql\u6307\u4ee4\n * @return integer\n *\/\n public function execute($str) {\n $this->initConnect(true);\n if ( !$this->_linkID ) return false;\n $this->queryStr = $str;\n \/\/\u91ca\u653e\u524d\u6b21\u7684\u67e5\u8be2\u7ed3\u679c\n if ( $this->queryID ) $this->free();\n N('db_write',1);\n \/\/ \u8bb0\u5f55\u5f00\u59cb\u6267\u884c\u65f6\u95f4\n G('queryStartTime');\n $result = $this->_linkID->query($str);\n $this->debug();\n if ( false === $result ) {\n\t\t\tif ($this->_linkID->errno == 2006 && !$this->isBreak){\n\t\t\t\t$this->isBreak = true;\n\t\t\t\t$this->close();\n\t\t\t\treturn $this->execute($str);\n\t\t\t}\n $this->error();\n return false;\n } else {\n $this->numRows = $this->_linkID->affected_rows;\n $this->lastInsID = $this->_linkID->insert_id;\n return $this->numRows;\n }\n }\n\n \/**\n * \u542f\u52a8\u4e8b\u52a1\n * @access public\n * @return void\n *\/\n public function startTrans() {\n $this->initConnect(true);\n \/\/\u6570\u636erollback \u652f\u6301\n if ($this->transTimes == 0) {\n $this->_linkID->autocommit(false);\n }\n $this->transTimes++;\n return ;\n }\n\n \/**\n * \u7528\u4e8e\u975e\u81ea\u52a8\u63d0\u4ea4\u72b6\u6001\u4e0b\u9762\u7684\u67e5\u8be2\u63d0\u4ea4\n * @access public\n * @return boolen\n *\/\n public function commit() {\n if ($this->transTimes > 0) {\n $result = $this->_linkID->commit();\n $this->_linkID->autocommit( true);\n $this->transTimes = 0;\n if(!$result){\n $this->error();\n return false;\n }\n }\n return true;\n }\n\n \/**\n * \u4e8b\u52a1\u56de\u6eda\n * @access public\n * @return boolen\n *\/\n public function rollback() {\n if ($this->transTimes > 0) {\n $result = $this->_linkID->rollback();\n $this->_linkID->autocommit( true);\n $this->transTimes = 0;\n if(!$result){\n $this->error();\n return false;\n }\n }\n return true;\n }\n\n \/**\n * \u83b7\u5f97\u6240\u6709\u7684\u67e5\u8be2\u6570\u636e\n * @access private\n * @param string $sql sql\u8bed\u53e5\n * @return array\n *\/\n private function getAll() {\n \/\/\u8fd4\u56de\u6570\u636e\u96c6\n $result = array();\n if($this->numRows>0) {\n \/\/\u8fd4\u56de\u6570\u636e\u96c6\n for($i=0;$i<$this->numRows ;$i++ ){\n $result[$i] = $this->queryID->fetch_assoc();\n }\n $this->queryID->data_seek(0);\n }\n return $result;\n }\n\n \/**\n * \u53d6\u5f97\u6570\u636e\u8868\u7684\u5b57\u6bb5\u4fe1\u606f\n * @access public\n * @return array\n *\/\n public function getFields($tableName) {\n $result = $this->query('SHOW COLUMNS FROM '.$this->parseKey($tableName));\n $info = array();\n if($result) {\n foreach ($result as $key => $val) {\n $info[$val['Field']] = array(\n 'name' => $val['Field'],\n 'type' => $val['Type'],\n 'notnull' => (bool) ($val['Null'] === ''), \/\/ not null is empty, null is yes\n 'default' => $val['Default'],\n 'primary' => (strtolower($val['Key']) == 'pri'),\n 'autoinc' => (strtolower($val['Extra']) == 'auto_increment'),\n );\n }\n }\n return $info;\n }\n\n \/**\n * \u53d6\u5f97\u6570\u636e\u8868\u7684\u5b57\u6bb5\u4fe1\u606f\n * @access public\n * @return array\n *\/\n public function getTables($dbName='') {\n $sql = !empty($dbName)?'SHOW TABLES FROM '.$dbName:'SHOW TABLES ';\n $result = $this->query($sql);\n $info = array();\n if($result) {\n foreach ($result as $key => $val) {\n $info[$key] = current($val);\n }\n }\n return $info;\n }\n\n \/**\n * \u66ff\u6362\u8bb0\u5f55\n * @access public\n * @param mixed $data \u6570\u636e\n * @param array $options \u53c2\u6570\u8868\u8fbe\u5f0f\n * @return false | integer\n *\/\n public function replace($data,$options=array()) {\n foreach ($data as $key=>$val){\n $value = $this->parseValue($val);\n if(is_scalar($value)) { \/\/ \u8fc7\u6ee4\u975e\u6807\u91cf\u6570\u636e\n $values[] = $value;\n $fields[] = $this->parseKey($key);\n }\n }\n $sql = 'REPLACE INTO '.$this->parseTable($options['table']).' ('.implode(',', $fields).') VALUES ('.implode(',', $values).')';\n return $this->execute($sql);\n }\n\n \/**\n * \u63d2\u5165\u8bb0\u5f55\n * @access public\n * @param mixed $datas \u6570\u636e\n * @param array $options \u53c2\u6570\u8868\u8fbe\u5f0f\n * @param boolean $replace \u662f\u5426replace\n * @return false | integer\n *\/\n public function insertAll($datas,$options=array(),$replace=false) {\n if(!is_array($datas[0])) return false;\n $fields = array_keys($datas[0]);\n array_walk($fields, array($this, 'parseKey'));\n $values = array();\n foreach ($datas as $data){\n $value = array();\n foreach ($data as $key=>$val){\n $val = $this->parseValue($val);\n if(is_scalar($val)) { \/\/ \u8fc7\u6ee4\u975e\u6807\u91cf\u6570\u636e\n $value[] = $val;\n }\n }\n $values[] = '('.implode(',', $value).')';\n }\n $sql = ($replace?'REPLACE':'INSERT').' INTO '.$this->parseTable($options['table']).' ('.implode(',', $fields).') VALUES '.implode(',',$values);\n return $this->execute($sql);\n }\n\n \/**\n * \u5173\u95ed\u6570\u636e\u5e93\n * @access public\n * @return volid\n *\/\n public function close() {\n if ($this->_linkID){\n $this->_linkID->close();\n }\n\t\t$this->connected = false;\n $this->_linkID = null;\n }\n\n \/**\n * \u6570\u636e\u5e93\u9519\u8bef\u4fe1\u606f\n * \u5e76\u663e\u793a\u5f53\u524d\u7684SQL\u8bed\u53e5\n * @static\n * @access public\n * @return string\n *\/\n public function error() {\n $this->error = $this->_linkID->errno.':'.$this->_linkID->error;\n if('' != $this->queryStr){\n $this->error .= \"\\n [ SQL\u8bed\u53e5 ] : \".$this->queryStr;\n }\n trace($this->error,'','ERR');\n return $this->error;\n }\n\n \/**\n * SQL\u6307\u4ee4\u5b89\u5168\u8fc7\u6ee4\n * @static\n * @access public\n * @param string $str SQL\u6307\u4ee4\n * @return string\n *\/\n public function escapeString($str) {\n if($this->_linkID) {\n return $this->_linkID->real_escape_string($str);\n }else{\n return addslashes($str);\n }\n }\n\n \/**\n * \u5b57\u6bb5\u548c\u8868\u540d\u5904\u7406\u6dfb\u52a0`\n * @access protected\n * @param string $key\n * @return string\n *\/\n protected function parseKey(&$key) {\n $key = trim($key);\n if(!is_numeric($key) && !preg_match('\/[,\\'\\\"\\*\\(\\)`.\\s]\/',$key)) {\n $key = '`'.$key.'`';\n }\n return $key;\n }\n}\n<\/code><\/pre>\n\n\n\n\u6d4b\u8bd5\u4e2d\uff0c\u5e94\u8be5\u662f\u53ef\u884c\u7684\u3002:)<\/p>\n","protected":false},"excerpt":{"rendered":"
\u516c\u53f8\u9879\u76ee\uff0c\u4f7f\u7528\u7684 ThinkPHP 3\u6846\u67b6\uff0c\u9047\u5230\u4e2amysql \u7684\u62a5\u9519\uff1a \u4e00\u987f\u641c\u7d22\u4e4b\u540e\uff08https:\/\/blog.csdn.net\/xiaomei_haimi\/article\/details\/81087037\uff09\uff0c\u5728\u67e5\u770b show global variables like ‘%timeout’; \u65f6\u53d1\u73b0\uff0cwait_timeout \u4e3a 4 \u79d2\u3002\u52a0\u5165\u4e00\u4e9b\u68c0\u67e5\u540e\u53d1\u73b0\uff0c\u62a5\u9519\u7684 SQL\uff0c\u6709\u4e4b\u524d\u7684\u4e00\u4e2a\u76f8\u5dee\u4e86 5\u2026<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.doublejia.cn\/index.php?rest_route=\/wp\/v2\/posts\/455"}],"collection":[{"href":"https:\/\/blog.doublejia.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.doublejia.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.doublejia.cn\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.doublejia.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=455"}],"version-history":[{"count":1,"href":"https:\/\/blog.doublejia.cn\/index.php?rest_route=\/wp\/v2\/posts\/455\/revisions"}],"predecessor-version":[{"id":456,"href":"https:\/\/blog.doublejia.cn\/index.php?rest_route=\/wp\/v2\/posts\/455\/revisions\/456"}],"wp:attachment":[{"href":"https:\/\/blog.doublejia.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=455"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.doublejia.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=455"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.doublejia.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=455"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}