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Get the subdomain from a URL
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Anyone have any great ideas besides
storing a list of all TLDs?
No, because each TLD differs on what counts as a subdomain, second level domain, etc.
Keep in mind that there are top level domains, second level domains, and subdomains. Technically speaking, everything except ...
Fast way to get image dimensions (not filesize)
...r if it reads the whole data for that though. See the manpage of exiv2 for all supported image formats.
head -n1 will give you the dimensions for PPM, PGM formats.
For formats popular on the web, both exiv2 and identify will do the job.
Depending on the use-case you may need to write your own scri...
Set a cookie to never expire
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All cookies expire as per the cookie specification, so this is not a PHP limitation.
Use a far future date. For example, set a cookie that expires in ten years:
setcookie(
"CookieName",
"CookieValue",
time() + (10 * 3...
How does facebook, gmail send the real time notification?
...JAX, it'll take a lot of the cross-compability problems away. In terms of PHP, you could simply poll an event log database table in your PHP script, and only return to the client when something happens? There are, I expect, many ways of implementing this.
Implementing:
Server Side:
There appear ...
increment date by one month
...2010.12.11");
$final = date("Y-m-d", strtotime("+1 month", $time));
// Finally you will have the date you're looking for.
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phpcms v9内容页/下载页更新时间（updatetime）为空的解决方法 - 更多技术 ...
phpcms v9内容页/下载页更新时间（updatetime）为空的解决方法这是由于模型管理中字段的设置不正确导致。updatetime原本应该设置为int（10）类型，可能由于什么原因被设置成了datetime类型（可以查看数...这是由于模型管理中字段的...
How do you get a timestamp in JavaScript?
...nd it returns the timestamp (without any alteration).
Details:
On almost all current browsers you can use Date.now() to get the UTC timestamp in milliseconds; a notable exception to this is IE8 and earlier (see compatibility table).
You can easily make a shim for this, though:
if (!Date.now) {
...
Assign same value to multiple variables at once?
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@Eoin: In doing $var_a = $var_b = ... = new Class();, all the variables will reference the same instance of Class.
– Tim Cooper
Jun 21 '19 at 19:34
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php 实时显示当前时间 - 更多技术 - 清泛网 - 专注C/C++及内核技术
php 实时显示当前时间网上找了许多办法都行不通，经过半天的折腾。终于弄出来下面能够实时显示当前时间，代码如下：<?php ob_end_flush(); 关闭php缓存，或...网上找了许多办法都行不通，经过半天的折腾。终于弄出来下面能够...
Why doesn't this code simply print letters A to Z?
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@ShreevatsaR: actually, 'yz'+1 = 'za'. The first comparison that fails is 'za'<='z'
– Milan Babuškov
Nov 4 '10 at 20:48
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