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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...
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How can I get the last 7 characters of a PHP string?

...r for the 2nd argument. $newstring = substr($dynamicstring, -7); From the php docs: string substr ( string $string , int $start [, int $length ] ) If start is negative, the returned string will start at the start'th character from the end of string. ...
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Get the subdomain from a URL

... 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 ...
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jQuery: Return data after ajax call success [duplicate]

I have something like this, where it is a simple call to a script that gives me back a value, a string.. 5 Answers ...
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PHP reindex array? [duplicate]

...lues does the job : $myArray = array_values($myArray); Also some other php function do not preserve the keys, i.e. reset the index. share | improve this answer | follow ...
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How to get a cross-origin resource sharing (CORS) post request working

... I finally stumbled upon this link "A CORS POST request works from plain javascript, but why not with jQuery?" that notes that jQuery 1.5.1 adds the Access-Control-Request-Headers: x-requested-with header to all CORS requests....
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Why doesn't this code simply print letters A to Z?

... @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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2015互联网结束补贴战 从相杀到相爱只需一个长假 - 资讯 - 清泛网 - 专注C/...

... 逐利合并结束补贴战 滴滴和快的合并后,外界最关心的问题是以后用手机叫车还有补贴吗? 在2015年第一财季,58同城净亏损5240万美元。而滴滴和快的之间的补贴烧钱大战也是愈演愈烈。“有一天,我们甚至烧掉了1000万美元...
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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 ...
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php static function

I have a question regarding static function in php. 6 Answers 6 ...