PHP: Dynamically refer to an object property

Sometimes you may need to programmatically determine which property of an object you would like to call. Are you trying to dynamically refer to an object property? In order to do this, you need to get past an issue with ambiguity. The PHP documentations says: …if you write$$a[1] then the parser needs to know if you… Read more PHP: Dynamically refer to an object property

PHP Find php.ini and edit configuration settings from command line

Manipulating the PHP ini file from the command line is really quite straight forward. To get yourself started on the command line, just ask PHP for help like this:

You’ll see a list of options and arguments. From the php help output one can see that the -i option will show what amounts to the… Read more PHP Find php.ini and edit configuration settings from command line

EXAMPLE OF PROMISE.ALL()

Example of Promise.all() Do you need to iterate over an array of promises? Promise.all() is often the best way. Promise.all(iterable) returns a single promise. Promise.all(iterable) only resolves after every promise in an array of promises has completed resolving. Since the elements of the array are promises, they do not resolve in any particular order. If… Read more EXAMPLE OF PROMISE.ALL()

Inject jQuery into a Webpage Through Chrome Javascript Console

include these lines of jQuery instantiation code in the javascript console Exploring the DOM is much easier with jQuery. However, You may be working with a webpage that does not natively have jQuery installed. That’s ok, the following lines of code will solve this. Just include these lines of jQuery instantiation code before you explore… Read more Inject jQuery into a Webpage Through Chrome Javascript Console

Iterate an array with a promise in javascript

Example of how to iterate an array with a promise It can be challenging to figure out how to iterate over an array of items with a promise. The following code takes a callback function that may or may not be a promise already. Once inside the PromiseForEach function, the callback will become a promise… Read more Iterate an array with a promise in javascript

[solved] devtool reloads if application writes to a file

If you are developing a node js application using devtool, you may experience a rather frustrating situation whereby you application stops without any traceable errors followed by a subsequent reload of the devtool. Why does devtool keep reloading when there are no errors? There is a likelyhood that you are experiencing this issue as you… Read more [solved] devtool reloads if application writes to a file

403 Error after adding a new website directory

On an ubuntu server it is common to host site files in a directory with a structure like ‘/var/www/example.com’. One might wish to separating a subdomain out from site files in another directory. Something like ‘/var/dev/example.com’. How to fix or prevent a 403 error after adding a new site directory To prevent a 403 error,… Read more 403 Error after adding a new website directory

SECURE COPY (SCP): EXAMPLES OF HOW TO USE SECURE COPY

Examples of how to use Secure Copy (scp) scp uses ssh for data file transfer between servers and provides the same level of security as ssh. Secure copy the file “somefile.txt” from a remote host to your local host

  Secure Copy your file “somefile.txt” from the local host to a remote host

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PHP What is Opcode Cache and When to Use it

Are you wondering: What is Opcode Cache and When to Use it? I just read an excellent article entitled PHP Performance I: Everything You Need To Know About OpCode Caches published by Engine Yard. The article is a transcript of a video on PHP opcode cache, actually. Engine Yard goes into just enough detail, allowing… Read more PHP What is Opcode Cache and When to Use it