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PHP的函数前加上“@”的作用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
PHP的函数前加上“@”的作用@是PHP提供的错误信息屏蔽的专用符号。比如在一个函数前使用@@mysql_query 不会出现Warning，而原来mysql_query 在遇到错误时会在页面上访提示Warning。@是PHP提供的错误信息屏蔽的专用符号。
比如在一个函...
configure: error: Unable to find gd.h anywhere under /usr/local/gd - ...
configure: error: Unable to find gd.h anywhere under /usr/local/gd安装php时出现configure: error: Unable to find gd.h anywhere under，错误解决在进行PHP开发环境源码安装时，在安装PHP-5.2.6是出...安装php时出现configure: error: Unable to find gd.h anywhere under，错误...
App Inventor 2 如何连接MySQL数据库（阿里云数据库） · App Inventor 2 中文网
...接MySQL数据库
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由于阿里数据库（Oceanbase）完全兼容 MySQL，因此这里探讨的就是怎么连MySQL。
App Inventor 2 如何连接MySQL数据库
首先，App Inventor 2 并没有提供直接连...
Is there a wikipedia API just for retrieve content summary?
...ow's intro in plain text:
Using page title:
https://en.wikipedia.org/w/api.php?format=json&action=query&prop=extracts&exintro&explaintext&redirects=1&titles=Stack%20Overflow
or use pageids
https://en.wikipedia.org/w/api.php?format=json&action=query&prop=extracts&e...
Simplest PHP example for retrieving user_timeline with Twitter API version 1.1
...won't be allowed. So, here's a post to help you do just that, along with a PHP class to make your life easier.
1. Create a developer account: Set yourself up a developer account on Twitter
You need to visit the official Twitter developer site and register for a developer account.
This is a free an...
PHPUnit assert that an exception was thrown?
...
<?php
require_once 'PHPUnit/Framework.php';
class ExceptionTest extends PHPUnit_Framework_TestCase
{
public function testException()
{
$this->expectException(InvalidArgumentException::class);
// or f...
Include constant in string without concatenating
Is there a way in PHP to include a constant in a string without concatenating?
12 Answers
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Passing $_POST values with cURL
...
Should work fine.
$data = array('name' => 'Ross', 'php_master' => true);
// You can POST a file by prefixing with an @ (for <input type="file"> fields)
$data['file'] = '@/home/user/world.jpg';
$handle = curl_init($url);
curl_setopt($handle, CURLOPT_POST, true);
cur...
Cookies vs. sessions
I started using PHP a couple of months ago. For the sake of creating a login system for my website, I read about cookies and sessions and their differences (cookies are stored in the user's browser and sessions on the server). At that time, I preferred cookies (and who does not like cookies?!) and j...
How to avoid isset() and empty()
... information in a somewhat better structured form: The Definitive Guide To PHP's isset And empty
IMHO you should think about not just making the app "E_NOTICE compatible", but restructuring the whole thing. Having hundreds of points in your code that regularly try to use non-existent variables so...