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Find XOR of all numbers in a given range
...' can be typically between 1 and 4,000,000,000 inclusive. You have to find out the XOR of all the numbers in the given range.
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Unknown column in 'field list' error on MySQL Update query
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Thank you. I was trying to figure out why my query in PHP was not working, all I had to do was add the single quotes.
– RiCHiE
Jul 2 '16 at 5:12
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Get value from SimpleXMLElement Object
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Or sprintf with the %s format. Or echo and output buffering, or or or or ...
– hakre
May 30 '12 at 22:36
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Extract numbers from a string
...imilar vein, try $newstr = preg_replace('!\d+!', '', $str);. It will strip out all the digits from your string. Example: $str = 'In My Cart : 11 12 items'; will output In My Cart : items.
– Aether
Jun 8 '11 at 13:02
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What does status=canceled for a resource mean in Chrome Developer Tools?
...or the speed of the internet connection.
This information is a few months out of date, but I built Chromium from scratch, dug through the source to find all the places where requests could get cancelled, and slapped breakpoints on all of them to debug. From memory, the only places where Chrome will...
Search for a string in Enum and return the Enum
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check out System.Enum.Parse:
enum Colors {Red, Green, Blue}
// your code:
Colors color = (Colors)System.Enum.Parse(typeof(Colors), "Green");
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Where does System.Diagnostics.Debug.Write output appear?
... hello.cs ) prints just Hello via Console! on the console and Hello via OutputDebugString in the DebugView window. However, I cannot see either of the System.Diagnostics.* calls. Why is that?
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How to force the browser to reload cached CSS/JS files?
...thing.
It's also worth noting that the browser isn't necessarily stingy about keeping files in cache. Browsers have policies for this sort of thing, and they are usually playing by the rules laid down in the HTTP specification. When a browser makes a request to a server, part of the response is a...
Generate .pem file used to set up Apple Push Notifications
..., then click "Continue" to go to next step.
Step 4: Follow the steps "About Creating a Certificate Signing Request (CSR)" to create a Certificate Signing Request.
To supplement the instruction provided by Apple. Here are some of the additional screenshots to assist you to complete the required...
How do you parse and process HTML/XML in PHP?
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The benefit of building upon DOM/libxml is that you get good performance out of the box because you are based on a native extension. However, not all 3rd-party libs go down this route. Some of them listed below
PHP Simple HTML DOM Parser
An HTML DOM parser written in PHP5+ lets you manipul...