什么mysql引擎最适合处理大量(多行)的(小)数据?我在谈论伐木.
每当我在页面上做事情时,我都在考虑记录,比如调用函数,调用文件等等.
我还应该了解如何构建表格.
使用以下代码我得到一个clock is not defined错误,为什么?
$(function(){
function clock() {
var nd = new Date();
var h, m, s;
h = nd.getHours();
m = nd.getMinutes();
s = nd.getSeconds();
if (h <= 9) h = "0" + h;
if (m <= 9) m = "0" + m;
if (s <= 9) s = "0" + s;
$('#digital-clock .hour').text(h+':');
$('#digital-clock .min').text(m+':');
$('#digital-clock .sec').text(s);
}
setTimeout('clock()', 1000);
});
Run Code Online (Sandbox Code Playgroud) 你如何将时区转换int为string(等:Europe/Stockholm)?
我正在使用Facebook的PHP api并返回["timezone"] => int(2).我怎么想解析那个?
每当我在url nginx中返回一个已知的文件扩展名404 Not Found.
domain.com/myroute.foo和domain.com/foo/myroute.foo是好的,但domain.com/myroute.php和domain.com/foo/myroute.php(或例如的CSS,.js文件)返回404 Not Found.
我的nginx服务器配置:
server {
listen 80;
server_name domain.com;
root /var/www/path/public;
charset utf-8;
gzip on;
#access_log logs/host.access.log main;
location / {
index index.html index.php index.htm;
try_files $uri $uri/ /index.php?q=$uri&$args;
}
location ~ \.php$ {
try_files $uri = 404;
fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $request_filename;
include fastcgi_params;
}
location ~* \.(jpg|jpeg|gif|png|bmp|ico|pdf|flv|swf|exe|html|htm|txt|css|js) {
add_header Cache-Control public;
add_header Cache-Control must-revalidate;
expires 7d;
access_log off;
}
} …Run Code Online (Sandbox Code Playgroud) 我在php(laravel)中有这个功能:
public static function isUserParticipatesInTournament($tourId, $userId)
{
var_dump($userId); //dumped
$user = User::find($userId);
if(!$user)
{
return null;
}
$obj = $user->whereHas('tournaments', function($query)
{
var_dump($tourId); //error
$query->where('id', '=', $tourId); //error
})->get();
return $obj;
}
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问题是在闭包$obj = $user->whereHas('tournaments', function($query){...}中$tourId变量是未定义的.我收到这个错误:
Undefined variable: userId.
为什么会这样?变量在内部函数的范围内声明.我唯一的想法是,它是一个回调函数.
当我尝试执行此函数时:$obj = $user->whereHas('tournaments', function($query, $tourId){...}然后我收到此异常:
Missing argument 2 for User::{closure}()
Run Code Online (Sandbox Code Playgroud) 为什么defines在类中创建变量时不能使用?我该怎么做才能超越这个?(define是表前缀(db))
像这样:
class foo {
public $bar = FOO."bar";
}
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这给了我以下错误:
解析错误:语法错误,意外'.',期待','或';'
我保存window.location到变量但是当window.location更改时(History.js)我的变量也被更改,为什么?我没有在第一页请求之外的任何地方设置我的变量.
(function(){
var myvar = window.location;
History.Adapter.bind(window, 'statechange', function(){
console.log(window.location.pathname);
console.log(myvar.pathname); // same as window.location.pathname but should be saved data from line 2
var state = History.getState(),
options = {
url: state.url,
type: 'get',
success: function(resp, status, xhr) {
$('#wrapper').html(resp);
}
};
$.extend(options, callbackOptions);
$.ajax(options);
});
$(document).on('click', 'a[data-pjax]', function(e){
e.preventDefault();
var self = $(this),
callback = self.attr('data-pjax');
History.pushState({ "callback" : callback }, 'Loading page...', self.attr('href'));
});
})();
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我加载页面,我的当前location.pathname是/foo,我点击一个pjax链接,我的新网址是/bar.myvar当我这样做时为什么会改变?我没有更改变量的代码.
我是 Laravel 的新手。我不确定如何在同一控制器内调用其他函数并将处理后的值返回到调用它的函数。我尝试过类似C语言的代码,但代码不起作用
class AgreementsApiController extends Controller
{
public function store($th_id,$mv_id,$wk1_terms,$wk2_terms,$wk3_terms)
{
//make a function call here to add function similar to
$result=add($th_id,$mv_id);
}
public function add($th_id,$mv_id)
{ //process the parameters and return to store function
$r=$th_id+$mv_id;
return $r;
}
}
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javascript ×2
class ×1
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logging ×1
mysql ×1
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oop ×1
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structure ×1
timezone ×1
variables ×1