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How do I use the ternary operator ( ? : ) in PHP as a shorthand for “if / else”?
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PHP 7+
As of PHP 7, this task can be performed simply by using the Null coalescing operator like this :
echo !empty($address['street2']) ?? 'Empty';
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file_put_contents(meta/services.json): failed to open stream: Permission denied
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Suggestion from vsmoraes worked for me:
Laravel >= 5.4
php artisan cache:clear
chmod -R 777 storage/
composer dump-autoload
Laravel < 5.4
php artisan cache:clear
chmod -R 777 app/storage
composer dump-autoload
NOTE: DO NOT DO THIS ON ANY REMOTE SERVER (DEV OR PRODUCTIO...
房多多：懂用户比懂互联网重要 - 资讯 - 清泛网 - 专注C/C++及内核技术
...既得利润，要有所为有所不为。
创业的第一年，面临的问题是你到底想干什么，是做交易还是做平台。过去十几年我做交易，公司不到一年也有几千万元的净利润。
但是做交易与做平台是有矛盾的，好比运动员同时想搭平台...
When should I use Memcache instead of Memcached?
It seems that PHP has two memcached libraries named memcache and memcached . What is the difference and how do you know which one to use? Is one outdated? It seems that memcached offers more methods so I would assume that means it has had the most development - but it also seems to require exter...
QUERY_STRING、REQUEST_URI、SCRIPT_NAME、PHP_SELF区别 - 更多技术 - 清泛...
QUERY_STRING、REQUEST_URI、SCRIPT_NAME、PHP_SELF区别通过实例说明PHP中QUERY_STRING、REQUEST_URI、SCRIPT_NAME、PHP_SELF区别。实例：
1、http://localhost/aaa/ （打开aaa中的index.php）
$_SERVER['QUERY_STRING'] = "";
$_SERVER['REQUEST_URI'] = "/aaa/";
$_SERVER['SCRIPT_NAME...
PHP学习必看的一些书 - IT书籍推荐 - 清泛网 - 专注C/C++及内核技术
PHP学习必看的一些书对应初学的PHP，应该买什么样的书？到处问人，到处求助？ 该文章列举了一些书籍，感觉还行，特此重新整理了一下。觉得有些言过其实了，或...对应初学的PHP，应该买什么样的书？到处问人，到处求助？ ...
PHP 安装 ZIP 扩展 - 更多技术 - 清泛网 - 专注C/C++及内核技术
PHP 安装 ZIP 扩展php_zip_extension一、安装libzipcd usr local srcwget https: libzip org download libzip-1 3 2 tar gztar zxf libzip-1 3 2 tar gzcd libzip-1 3 2 configuremake && make install如 一、安装libzip
cd /usr/local/src
wget https://libzip.org/download/libzip-1.3.2.tar.gz
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How do I grep recursively?
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I can get:
/home/vonc/gitpoc/passenger/gitlist/github #grep --include="*.php" -nRHI "hidden" *
src/GitList/Application.php:43: 'git.hidden' => $config->get('git', 'hidden') ? $config->get('git', 'hidden') : array(),
src/GitList/Provider/GitServiceProvider.php:21: ...
deny direct access to a folder and file by htaccess
...way you cannot open any file from that folder, but you can include them in php without any problems.
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每次打开App时保持上一次关闭时的状态 · App Inventor 2 中文网
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每次打开App时保持上一次关闭时的状态
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每次打开App时保持上一次关闭时的状态
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图片粘贴上来就发表不了了，用的本地...