Series: php features

The php language offers elaborate features. This series of articles presents some details of using those features effectively.

SQLite3 in php — some notes

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This entry is part 1 of 3 in the series php features

I’ve been working on the SQLIite Object Cache plugin for WordPress, so I’ve had to figure out a few things about using SQLite itself and php’s SQLite3 extension. Here are some notes. There are various versions of the SQLite software around. If you will run your code on multiple different hosting providers and server configurations, … Read more

APCu in php — some notes

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This entry is part 2 of 3 in the series php features

I’ve been working on the SQLIite Object Cache plugin for WordPress. I’m using the APCu User Cache, php’s RAM cache subsystem, to accelerate cache lookups — specifically to support wp_cache_get() and wp_cache_get_multiple() operations. I’ve had to figure out a few things about this php feature. Here are some notes. Its documentation is not as comprehensive … Read more

php’s microtime() function

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This entry is part 3 of 3 in the series php features

php’s microtime( true ) function returns a floating point number of seconds since the UNIX epoch. On my computer each call takes about 200ns. The same is true of the time() and hrtime() functions. hrtime() is more modern and gives nanosecond resolution, so use it if possible. It’s available in php 7.3 and beyond. By … Read more