Is using PHP's `list` function considered bad practice?

Could not search for this topic due to list being a very common word. list($total, $tax) = $this->getOrderAmounts(); Is this considered bad practice or code smell? I feel like I've been using it as a bad shortcut recently. Aside: list is actually a language construct, not a function I personally wouldn't use list because it is so "not precise". Consider this :- $rain

使用PHP的`list`函数被认为是不好的做法?

由于列表是一个非常常见的词,因此无法搜索该主题。 list($total, $tax) = $this->getOrderAmounts(); 这被认为是不好的做法或代码味道? 我觉得我最近一直在使用它作为一个糟糕的捷径。 另外: list实际上是一个语言结构,而不是一个函数 我个人不会使用列表,因为它是如此“不精确”。 考虑这个: - $rainbow = array('violet', 'indigo','blue','green','yellow','orange','red'); list($violet,,,,,,$red) = $rain

Why is PHP's explode wrong?

Here is the PHP code: var_dump($value); string(103) "0e0cUZ‚dddd.is.moar.awesome‚A6A32C2074B787893DF506F6F466F5919516C44F3" var_dump(explode(',', $value)); array(1) { [0]=> string(103) "0e0cUZ‚dddd.is.moar.awesome‚A6A32C2074B787893DF506F6F466F5919516C44F3" } Why isn't the string being split on the comma? Because the character in the string you're trying to explode() is not a comma

为什么PHP的爆炸错误?

这里是PHP代码: var_dump($value); string(103) "0e0cUZ‚dddd.is.moar.awesome‚A6A32C2074B787893DF506F6F466F5919516C44F3" var_dump(explode(',', $value)); array(1) { [0]=> string(103) "0e0cUZ‚dddd.is.moar.awesome‚A6A32C2074B787893DF506F6F466F5919516C44F3" } 为什么不是在逗号分隔的字符串? 因为你想要explode()的字符串中的字符不是逗号 - 嗯,不是一个ASCII逗号: , (十进制代码点44 )。 字符串中的逗

Outputting HTML with echo considered bad practice in PHP?

In PHP, I'm using an if statement to identify whether a user is logged in or not, and depending on the result, displaying the main menu (if logged in) or a "you need to login" message if not. I am doing this like so: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">

用echo输出HTML在PHP中被认为是不好的做法?

在PHP中,我使用if语句来确定用户是否已登录,并根据结果显示主菜单(如果已登录)或者“需要登录”消息,如果没有。 我这样做是这样的: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html;charset=utf-8" /> <li

Extract HTML of a Scraped Page Using PHP's DOM

Is it possible to create HTML output from the contents of an HTML snippet that has been extracted via PHP's DOM tools (eg $div = $dom->getElementsByTagName('table')->item(0);) such that the HTML created contains just the elements with specified tag name, and their descendants? Otherwise, are there perhaps any other ways to easily extract a snippet of HTML from the full HTML of

使用PHP的DOM提取Scraped页面的HTML

是否有可能通过已经通过PHP的DOM工具(例如$ div = $ dom-> getElementsByTagName('table') - > item(0);)提取的HTML代码片段的内容创建HTML输出,以便创建HTML只包含具有指定标签名称的元素及其后代? 否则,有没有其他方法可以从页面的完整HTML中轻松提取HTML代码片段? 我只想提取我所抓取页面的第一张表格,并只显示该表格及其内容。 是的,您可以将节点传递给DOMDocument::saveXML() echo $dom->

html scraping and css queries

what are the advantages and disadvantages of the following libraries? PHP Simple HTML DOM Parser QP phpQuery From the above i've used QP and it failed to parse invalid HTML, and simpleDomParser, that does a good job, but it kinda leaks memory because of the object model. But you may keep that under control by calling $object->clear(); unset($object); $object->clear(); unset($o

HTML抓取和CSS查询

以下库的优点和缺点是什么? PHP简单的HTML DOM解析器 QP phpQuery 从上面我已经使用QP,它没有解析无效的HTML和simpleDomParser,它做得很好,但由于对象模型的原因,它有点泄漏内存。 但是你可以通过调用$object->clear(); unset($object); $object->clear(); unset($object); 当你不再需要物体时。 还有更多的刮板吗? 你与他们的经历是什么? 我将把它变成一个社区wiki,我们可以建立一个有用的库列表,

Are global variables in PHP considered bad practice? If so, why?

function foo () { global $var; // rest of code } In my small PHP projects I usually go the procedural way. I generally have a variable that contains the system configuration, and when I nead to access this variable in a function, I do global $var; . Is this bad practice? When people talk about global variables in other languages it means something different to what it does in PHP.

PHP中的全局变量被认为是不好的做法? 如果是这样,为什么?

function foo () { global $var; // rest of code } 在我的小型PHP项目中,我通常采用程序化的方式。 我通常有一个包含系统配置的变量,当我在功能中访问这个变量时,我会执行global $var; 。 这是不好的做法吗? 当人们谈论其他语言的全局变量时,它意味着与PHP中的不同。 这是因为PHP中的变量不是全球性的。 典型的PHP程序的范围是一个HTTP请求。 会话变量实际上具有比PHP“全局”变量更广的范围,因为它们通常

php

I certainly must be missing something here. For some reason filter_var is not working. I'm trying to validate an email from $_POST, and it returns false even with valid emails. But, when I hardcode an email, it works fine. What's wrong? Here's my php code: function redirect() { //redirecting to home page function. Used in one of the lectures. $host = $_SERVER["HTTP_HOST"];

PHP

我当然必须在这里错过一些东西。 出于某种原因,filter_var不起作用。 我试图验证来自$ _POST的电子邮件,即使使用有效的电子邮件,它也会返回false。 但是,当我硬编码一个电子邮件,它工作正常。 怎么了? 这是我的PHP代码: function redirect() { //redirecting to home page function. Used in one of the lectures. $host = $_SERVER["HTTP_HOST"]; $path = rtrim(dirname($_SERVER["PHP_SELF"]), "/\");

var email error

i use he filter_var php function to validate email address when a user sign up to my site so i use this code form the post: $email = filter_var($_POST['email'], FILTER_VALIDATE_EMAIL); then later i do: if(!$email) { // return to the form } else { // send registration info } now when i var_dump($email) output: string(23) "user."name"@example.com" i would like to know why this not re

无效电子邮件错误

当用户注册我的网站时,我使用filter_var php函数来验证电子邮件地址 所以我使用这个代码形式的帖子: $email = filter_var($_POST['email'], FILTER_VALIDATE_EMAIL); 那么以后我会这样做: if(!$email) { // return to the form } else { // send registration info } 现在当我var_dump($电子邮件) 输出: string(23) "user."name"@example.com" 我想知道为什么这不会返回false,我认为双引号是不可接受的,

php

I'm fairly new to the php scene, but as I have been searching for hours on what may be wrong with this code I am at a loss. For some reason, the FILTER_VALIDATE_EMAIL and unique email check in db are not working, they are being skipped completely. I know this because when the form is submitted it kicks out an error on the last catch(PDOExceptions $ex) (not shown hear but after the last bloc

PHP

我对PHP的场景相当陌生,但由于我一直在寻找几个小时,可能是这段代码有什么问题,所以我很茫然。 出于某种原因,FILTER_VALIDATE_EMAIL和独特的电子邮件检查分贝无法正常工作,它们将被完全跳过。 我知道这是因为当表单被提交时,它会在最后一个catch(PDOExceptions $ex) (未显示听到,但在最后一段代码之后)出现错误,而不是设置为之前显示的任何其他错误(显示这里)。 直到尝试将表单数据插入到数据库中,才会发生错误

Laravel elixer versioning (cache buster) multiple servers

At the moment we have a new server environment with multiple servers, so the cache busting functionality of laravel elixer doesn't work if we download the repository and run gulp, as each server has a different version of the .js and .css file. The problem is load balancing can send the user to either server per request. Some browsers seem to be immune from the problem but for example I ca

Laravel elixer版本控制(cache buster)多台服务器

目前,我们有一个包含多个服务器的新服务器环境,因此,如果我们下载存储库并运行gulp,则laravel elixer的缓存清除功能不起作用,因为每个服务器都有不同版本的.js和.css文件。 问题是负载平衡可以将用户发送到每个请求的服务器。 某些浏览器似乎不受此问题困扰,但例如,我无法使用JMeter正确加载css或js进行负载测试。 有没有一种方法来同步编译,而不需要将编译的文件添加到存储库或FTP的一切? 我们正在尝试通过运行