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How to check if PHP array is associative or sequential?

... You have asked two questions that are not quite equivalent: Firstly, how to determine whether an array has only numeric keys Secondly, how to determine whether an array has sequential numeric keys, starting from 0 Consider which of these behaviours you actually nee...
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How do I redirect output to a variable in shell? [duplicate]

... This captures the output of a command, but it does not use a redirect. If you actually need to use a redirect because of a more complex need, See my answer. Google brought you here, right? Why go somewhere else to find the answer you searched for? ...
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How to vertically center divs? [duplicate]

... modern browsers is to use flexbox: #Login { display: flex; align-items: center; } Some browsers will need vendor prefixes. For older browsers without flexbox support (e.g. IE 9 and lower), you'll need to implement a fallback solution using one of the older methods. Recommended Reading ...
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How to remove elements from a generic list while iterating over it?

I am looking for a better pattern for working with a list of elements which each need processed and then depending on the outcome are removed from the list. ...
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Vagrant's port forwarding not working [closed]

... of just more comments. First thing: try curl 'http://localhost:80' from within the VM. If that doesn't work, then it's definitely not the port forwarding. Next: try curl -v 'http://localhost:4567/' from your host machine. Curl might give you a better error message than Safari. I'd check that t...
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What is Python used for? [closed]

What is Python used for and what is it designed for? 2 Answers 2 ...
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how to calculate binary search complexity

...ody say that since binary search halves the input required to search hence it is log(n) algorithm. Since I am not from a mathematics background I am not able to relate to it. Can somebody explain it in a little more detail? does it have to do something with the logarithmic series? ...
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Remote debugging with Android emulator

Is it possible to write the code/compile Android application on one machine and debug it remotely on the emulator launched on another? I'm sick and tired of the emulator constantly eating half of my laptop's CPU. ...
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AngularJS : Why ng-bind is better than {{}} in angular?

...follow | edited May 6 '19 at 9:13 serv-inc 26.6k88 gold badges116116 silver badges130130 bronze badges ...
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What is monkey patching?

... No, it's not like any of those things. It's simply the dynamic replacement of attributes at runtime. For instance, consider a class that has a method get_data. This method does an external lookup (on a database or web API, for e...