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Getting JavaScript object key list
... if you extend Object.prototype, which you should not be doing anyway. For custom constructors, though, you are right.
– Sasha Chedygov
Oct 23 '10 at 8:02
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How can I default a parameter to Guid.Empty in C#?
...lt value for the type :)
(Interestingly, I'm 99.9% sure it won't call any custom new Foo() constructor you may have created. You can't create such a constructor in a value type in C#, but you can do so in IL.)
You can use the default(Foo) option for any type.
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What is the difference between single-quoted and double-quoted strings in PHP?
I'm a little confused why I see some code in PHP with string placed in single quotes and sometimes in double quotes.
12 Ans...
What is causing “Unable to allocate memory for pool” in PHP?
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More info for this APC setting: php.net/apc.configuration#ini.apc.mmap-file-mask
– mikeytown2
Mar 5 '12 at 22:49
2
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Send attachments with PHP Mail()?
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I agree with @MihaiIorga in the comments – use the PHPMailer script. You sound like you're rejecting it because you want the easier option. Trust me, PHPMailer is the easier option by a very large margin compared to trying to do it yourself with PHP's built-in mail() function...
How do I see the extensions loaded by PHP?
It's got to be somewhere in the phpinfo() dump, but I just don't know where. Is it supposed to be under the "Additional Modules" section? Somewhere else? I'm trying to figure out why some extensions don't appear to be loaded, but I don't even know where I should be looking.
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php：获取数组第一个值 - 更多技术 - 清泛网 - 专注C/C++及内核技术
php：获取数组第一个值自PHP 5.4版本后可以使用[ ]来取数据指定位置的元素，索引从0开始，即$arr[0]取数组第一个值。不过为了兼容性，建议还是采取reset(),current(),next()等函数来取数组中的值，reset($arr)后current($arr)取第一个值。自...
PHP优化杂烩 - 更多技术 - 清泛网 - 专注C/C++及内核技术
PHP优化杂烩讲 PHP 优化的文章往往都是教大家如何编写高效的代码，本文打算从另一个角度来讨论问题，教大家如何配置高效的环境，如此同样能够达到优...讲 PHP 优化的文章往往都是教大家如何编写高效的代码，本文打算从另...
PHP连接MySQL报错：Fatal error: Call to undefined function mysql_connec...
【问题描述】
PHP测试连接MySQL的程序如下：
<?php
$host='localhost';
$user_name='root';
$password='mysql';
$conn=mysql_connect($host,$user_name,$password);
if (!$conn)
{
die('数据库连接失败：'.mysql_error());
}
echo '数据库连接成功！';
if (mysql_clos...
LINUX下用PHPIZE安装PHP GD扩展 - PHP - 清泛IT论坛，有思想、有深度
...zqp2013 于 2015-4-26 14:39 编辑
环境：LNMP in centOS 6.4。linux下PHP的扩展可以用phpize的方法，比较简单地进行启用。以下以PHP-GD2 库安装为例子。sudo yum install php-gd2 png jpeg freetype //YUM安装扩展cd /app/php-5.4.13/ext/gd &nbs...