php根据数据库生成接口 php根据数据库生成接口文件
php读取数据库数据后 怎么给每一天数据做连接？
echo $Record[0]."br";
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这里输出的本来就是不同的数据，给他加上链接就好了
echo 'a href=page.php?id='+$Record[0]+''.$Record[0]."/abr";
这样可以传递不同的参数
php连接数据库后如何输出转换为json格式API，求详细解答，
?php
$link = mysql_connect ( 'localhost', 'root', 'root' );
mysql_select_db ( 'test', $link );
$sql = "select * from books ";
$result = mysql_query ( $sql );
//将结果集转为数组，每次取一行
while($row = mysql_fetch_assoc($result)) {
$rows[] = $row;
}
echo json_encode($rows);
exit;
?
php + mysql 取得数据库中二进制文件，生成链接供打开
filelist.php
?php
................
$result=mysql_db_query(.........id,filename.........);#查询结果并存入变量中
$rows=mysql_num_rows($result);#得出数据行数
for($i=0;$i$rows;$i++){
$total=mysql_fetch_array($result);
echo
"lia
href='filedown.php?fileid=$total[id]filename=$total[filename]'
target
='_blank'
$total[filename]/a/li";
}
...............
?
filedown.php
?php
$fid=$_GET['fileid'];
$fname=$_GET['filename'];
.....................
.....................
$result=mysql_db_query(.........,"select
id,filename,datasize,filedata
from
ftable
where
id='$fid'",.........);
$total=mysql_fetch_array($result);
$file_size=$total[datasize];
header("Content-type:application/octet-stream");
header("Accept-Ranges:bytes");
header("Accept-Length:$file_size");
header("Content-Disposition:attachment;filename=".$total[filename]);
echo
$total[filedata];
...............
?
======
你说把二进制的字节流取出生成文件保存到磁盘然后给个超链接,
这样做法没意义，你既然把它存在库里了那直接stream给用户是最好的方式，否则你还得考虑把它还原到文件夹用户使用完后怎么处理的问题？如果保留那当初就应该同时把它存在文件夹省得者多麻烦，如果不保留那反复生成删除还有共享问题反而加重服务器负担。要么一次生成定期择优删除，又有许多代码有的写了。。。
PHP从数据库读取数据批量生成HTML
首先创建html文件。可以以id字段作为文件名，你如果嫌短的话，再加上time()。
如 $filename=$row[id].time."html";
然后以可写的形式打开刚刚建立的文件，把读出的数据内容存放进去。一个文件就建成了。如果建成批量的，在读取数据表的时候，把代码加到while循环里就好了。
php中怎么把数据库连接写成一个接口
我自己封装的一个
?php
class AppConfig{
public static $dbParam = array(
'dbHost' = 'localhost',
'dbUser' = 'root',
'dbPassword' ='',
'dbName' = '数据库名',
'dbCharset' = 'utf8',
'dbPort' = 3306,
'dbPrefix' = 'test_',
'dbPconnect' = 0,
'dbDebug' = true,
);
}
class Model {
private $version = ''; //mysql版本
private $config = array(); //数据库配置数组
private $class; //当前类名
public $tablepre = 'ts_'; //表前缀
public $db = ''; //库名
public $table = ''; //表名
private static $link; //数据库链接句柄
private $data = array(); //中间数据容器
private $condition = ''; //查询条件
private $fields = array(); //字段信息
private $sql = array(); //sql集合，调试用
public $primaryKey = 'id'; //表主键
//构造函数初始化
public function __construct($dbParam = array()) {
$this-config = (is_array($dbParam) !empty($dbParam)) ? $dbParam : AppConfig::$dbParam;
$this-connect();
$this-init();
}
//链接数据库
private function connect() {
if($this-config['dbPconnect']) {
self::$link = @mysql_pconnect($this-config['dbHost'], $this-config['dbUser'], $this-config['dbPassword']);
}else{
self::$link = @mysql_connect($this-config['dbHost'], $this-config['dbUser'], $this-config['dbPassword'], true);
}
mysql_errno(self::$link) != 0 $this-errdie('Could not connect Mysql: ');
$this-db= !empty($this-db) ? $this-db : $this-config['dbName'];
$serverinfo = $this-version();
if ($serverinfo '4.1' $this-config['dbCharset']) {
mysql_query("SET character_set_connection=".$this-config['dbCharset'].",character_set_results=".$this-config['dbCharset'].",character_set_client=binary", self::$link);
}
if ($serverinfo '5.0') {
mysql_query("SET sql_mode=''", self::$link);
}
@mysql_select_db($this-db, self::$link) or $this-errdie('Cannot use database');
return self::$link;
}
//表基本信息初始化
protected function init() {
$this-class = get_class($this);
$this-table = !empty($this-table) ? $this-table : strtolower($this-class);
$this-table = $this-tablepre . $this-table;
return $this;
}
//设置属性值
public function __set($name, $value) {
//exit($value);
$this-data['fields'][$name] = $value;
}
//获取属性值
public function __get($name) {
if(isset($this-data['fields'][$name])) {
return($this-data['fields'][$name]);
}else {
return NULL;
}
}
//字段信息处理
private function implodefields($data) {
if (!is_array($data)) {
$data = array();
}
$this-fields = !empty($this-data['fields']) ? array_merge($this-data['fields'], $data) : $data;
foreach($this-fields as $key = $value) {
$fieldsNameValueStr[] = "`$key`='$value'";
$fieldsNameStr[] = "`$key`";
$fieldsValueStr[] = "'$value'";
}
return array($fieldsNameValueStr, $fieldsNameStr, $fieldsValueStr);
}
//条件判断组装
private function condition($where = NULL) {
if (is_numeric($where)) {
$where = "WHERE `{$this-primaryKey}`='{$where}' LIMIT 1";
}elseif (is_array($where)){
$where = "WHERE `{$this-primaryKey}` in (".implode(',',$where).")";
}elseif(!empty($this-data['condition'])){
//'预留WHERE', 'order', 'group', 'limit' …………等条件关键词处理接口
$where = $where ? "WHERE {$where}" : "WHERE 1";
isset($this-data['condition']['where']) $where .= ' AND '.$this-data['condition']['where'];
isset($this-data['condition']['group']) $where .= ' GROUP BY '.$this-data['condition']['group'];
isset($this-data['condition']['order']) $where .= ' ORDER BY '.$this-data['condition']['order'];
isset($this-data['condition']['limit']) $where .= ' LIMIT '.$this-data['condition']['limit'];
}else{
$where = "WHERE {$where}";
}
$this-condition = $where;
return $this;
}
//插入数据
public function insert($data = array(), $replace = false) {
$fields = $this-implodefields($data);
$insert = $replace ? 'REPLACE' : 'INSERT';
$sql = "{$insert} INTO `{$this-db}`.`{$this-table}` (".implode(', ',$fields[1]).") values (".implode(', ',$fields[2]).")";
$this-query($sql);
return $this-getInsertId();
}
//更新数据
public function update($data = array() ,$where = '') {
$numargs = func_num_args();
if ($numargs == 1) {
$where = $data;
$data = array();
}
$fields = $this-implodefields($data);
$this-condition($where);
$sql = "UPDATE `{$this-db}`.`{$this-table}` SET ".implode(', ',$fields[0])." {$this-condition}";
$this-query($sql);
return $this-getAffectedRows();
}
//删除数据
public function delete($where = NULL) {
if(!is_array($where) strtolower(substr(trim($where), 0, 6)) == 'delete'){
$sql = $where;
}else{
$this-condition($where);
$sql = "DELETE FROM `{$this-db}`.`{$this-table}` {$this-condition}";
}
$this-query($sql);
return $this-getAffectedRows();
}
//查询数据
public function select($where = NULL, $fields = '*') {
if(!is_array($where) strtolower(substr(trim($where), 0, 6)) == 'select'){
$sql = $where;
}else{
$this-condition($where);
$sql = "SELECT {$fields} FROM `{$this-db}`.`{$this-table}` {$this-condition}";
}
return $this-fetch($this-query($sql));
}
//查询一条数据
public function getOne($where, $fields = '*') {
$data = $this-select($where, $fields = '*');
if($data) {
return $data[0];
}
return array();
}
//查询多条数据
public function getAll($where, $fields = '*') {
$data = $this-select($where, $fields = '*');
return $data;
}
//结果数量
public function getCount($where = '', $fields = '*') {
$this-condition($where);
$sql = "SELECT count({$fields}) as count FROM `{$this-db}`.`{$this-table}` {$this-condition}";
$data = $this-query($sql);
if($data){
return @mysql_result($data,0);
}
return 0;
}
//执行sql语句（flag为0返回mysql_query查询后的结果，为1返回lastid，其他返回影响行数，默认为2返回影响行数）
public function query($sql, $flag = '0', $type = '') {
if ($this-config['dbDebug']) {
$startime = $this-microtime_float();
}
//查询
if ($type == 'UNBUFFERED' function_exists('mysql_unbuffered_query')) {
$result = @mysql_unbuffered_query($sql, self::$link);
} else {
//exit($sql);
$result = @mysql_query($sql, self::$link);
}
//重试
if (in_array(mysql_errno(self::$link), array(2006,2013)) empty($result) $this-config['dbPconnect']==0 !defined('RETRY')) {
define('RETRY',true); @mysql_close(self::$link); sleep(2);
$this-connect();
$result = $this-query($sql);
}
if ($result === false) {
$this-errdie($sql);
}
if ($this-config['dbDebug']) {
$endtime = $this-microtime_float();
$this-sql[] = array($sql,$endtime-$startime);
}
//清空操作数据
$this-data = array();
return $flag == '0' ? $result : ($flag == '1' ? $this-getInsertId() : $this-getAffectedRows());
}
//返回结果$onlyone为true返回一条否则返回所有,$type有MYSQL_ASSOC,MYSQL_NUM,MYSQL_BOTH
public function fetch($result, $onlyone = false, $type = MYSQL_ASSOC) {
if($result){
if ($onlyone) {
$row = @mysql_fetch_array($result, $type);
return $row;
}else{
$rowsRs = array();
while($row=@mysql_fetch_array($result, $type)) {
$rowsRs[] = $row;
}
return $rowsRs;
}
}
return array();
}
//可以运行SELECT，SHOW，EXPLAIN 或 DESCRIBE 等返回一个资源标识符的语句得到返回结果数组
public function show($sql, $onlyone = false) {
return $this-fetch($this-query($sql), $onlyone);
}
// 使用call函数处理同类型函数
private function __call($name, $arguments) {
$callArr = array('on', 'where', 'order', 'between', 'group', 'limit');
if (in_array($name, $callArr)) {
$this-data['condition'][$name] = $arguments[0];
}else{
$this-errdie("function error: function {$name} is not in ($this-class) class exist");
}
return $this;
}
//返回最后一次插入ID
public function getInsertId() {
return @mysql_insert_id(self::$link);
}
//返回受影响行数
public function getAffectedRows() {
return @mysql_affected_rows(self::$link);
}
//获取错误信息
private function error() {
return ((self::$link) ? @mysql_error(self::$link) : @mysql_error());
}
//获取错误信息ID
private function errno() {
return ((self::$link) ? @mysql_errno(self::$link) : @mysql_errno());
}
//获取版本信息
function version() {
if(empty($this-version)) {
$this-version = mysql_get_server_info(self::$link);
}
return $this-version;
}
//打印错误信息
private function errdie($sql = '') {
if ($this-config['dbDebug']) {
die('/BRBMySQL ERROR/B/BR
SQL:'.$sql.'/BR
ERRNO:'.$this-errno().'/BR
ERROR:'.$this-error().'/BR');
}
die('DB ERROR！！！');
}
//获取时间微妙数
private function microtime_float()
{
list($usec, $sec) = explode(" ", microtime());
return ((float)$usec + (float)$sec);
}
//析构函数
public function __destruct() {
echo 'hr';
$this-config['dbDebug'] print_r($this-sql);
//unset($this-result);
//unset($this-condition);
//unset($this-data);
}
}
class user extends Model {
//public $db = 'qsf_mvc';
//public $table = 'user';
public $primaryKey = 'uid';
}
$userObj = new user();
//---------------------------------------插入数据方法一-----------------------------------------
//模拟ActiveRecord模式 插入数据
$userObj-username = 'hoho';
$userObj-passwd = '1478522';
$userObj-email = 'qsf.z11@163.com';
$userObj-sex = 1;
$userObj-desc = '清洁工';
$insetId = $userObj-insert();
if ($insetId 0) {
echo "插入ID为:{$insetId}BR";
}
//---------------------------------------插入数据方法二-----------------------------------------
//直接数组做参数插入数据
$userArr = array(
'username' = 'hoho',
'passwd' = '1478522',
'email' = 'qsf.z2121ia@163.com',
'sex' = '1',
'desc' = '厨师',
);
$insetId = $userObj-insert($userArr);
if ($insetId 0) {
echo "插入ID为:{$insetId}BR";
}
//---------------------------------------更新数据方法一----------------------------------------
$userObj-username = 'h111oho';
$userObj-passwd = '1478511122';
$userObj-email = 'qsf111ia@163.com';
$userObj-sex = 1;
$userObj-desc = '清洁工';
$affectedRows1 = $userObj-update(89);
if ($affectedRows1 0) {
echo "影响行数为:{$affectedRows1}BR";
}
//---------------------------------------更新数据方法二----------------------------------------
//更新记录（传递参数的方式和insert操作一样）
$userArr = array(
'username' = 'hohoho',
'passwd' = '1474rr4448522',
'email' = 'qsf.rrza@165.com',
'sex' = '0',
'desc' = '厨师qq',
);
$affectedRows = $userObj-update($userArr, $insetId);
if ($affectedRows 0) {
echo "影响行数为:{$affectedRows}BR";
}
//----------------------------------------查询数据----------------------------------------------
$userRs0 = $userObj-select(8); //单个主键值
//print_r($userRs0);
$userRs1 = $userObj-select(array(1,5,8)); //多个主键值的数组
//print_r($userRs1);
$userRs2 = $userObj-select('select count(*) as count from user where uid 20'); //直接完整sql语句
//print_r($userRs2);
$userRs3 = $userObj-select("`uid` 0"); //where条件
//print_r($userRs3);
$userRs4 = $userObj-getOne("`uid` 0"); //获取单条记录
//print_r($userRs4);
$usersRs5 = $userObj-getAll("`uid` 0"); ////获取所有记录
//print_r($usersRs5);
$usersRs6 = $userObj-limit('0,10')-where('uid 100')-order('uid DESC')-group('username')-select();
//print_r($usersRs6);
//----------------------------------------删除数据-----------------------------------------------
//删除操作传递参数的方式和select操作一样
$userObj-delete(60); //单个主键值
$userObj-delete(array(1,5,8)); //多个主键值的数组
$userObj-delete('delete from user where uid 100'); //直接完整sql语句
$userObj-delete("`uid` 100"); //where条件
$userObj-limit('5')-where('uid 80')-delete();
//----------------------------------------特殊查询-----------------------------------------------
$userShowRs = $userObj-show('show create table user', true); //获取特殊查询的结果,第二个参数代表返回一条结果还是所有的结果
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