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List of Big-O for PHP functions
After using PHP for a while now, I've noticed that not all built-in PHP functions are as fast as expected. Consider these two possible implementations of a function that finds if a number is prime using a cached array of primes.
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Are global variables in PHP considered bad practice? If so, why?
In my small PHP projects I usually go the procedural way. I generally have a variable that contains the system configuration, and when I nead to access this variable in a function, I do global $var; .
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Creating the Singleton design pattern in PHP5
How would one create a Singleton class using PHP5 classes?
21 Answers
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How can I connect to a Tor hidden service using cURL in PHP?
I'm trying to connect to a Tor hidden service using the following PHP code:
4 Answers
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Using a .php file to generate a MySQL dump
...c(), I would choose the second one, which doesn't return the output to the PHP script -- no need for the PHP script to get the whole SQL dump as a string : you only need it written to a file, and this can be done by the command itself.
That external command will :
be a call to mysqldump, with th...
How can I measure the speed of code written in PHP? [closed]
...ow three of those :
Webgrind ; web interface ; should work on any Apache+PHP server
WinCacheGrind ; only on windows
KCacheGrind ; probably only Linux and linux-like ; That's the one I prefer, btw
To get profiling files, you have to install and configure Xdebug ; take a look at the Profiling PHP...
How to determine the memory footprint (size) of a variable?
Is there a function in PHP (or a PHP extension) to find out how much memory a given variable uses? sizeof just tells me the number of elements/properties.
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How can I get the MAC and the IP address of a connected client in PHP?
...ow the MAC and the IP address of the connect clients, how can I do this in PHP?
16 Answers
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get UTC time in PHP
How can I get UTC/GMT +/- time stamp using PHP's date() function? For example, if I try
12 Answers
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Dynamically generating a QR code with PHP [closed]
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The easiest way to generate QR codes with PHP is the phpqrcode library.
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