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Get random array records

You have a large array from which you want to choose a random value.

Regular array_rand ($array); instead of $array [Mt _ rand (0, count ($array)-1)]; performance

I created an array of 5 million elements. This is the best result:

Method execution time processing time array_ Rand25.99 microseconds mt_ Rand0.95 microseconds

The alternative method is that this measurement is 27.3 times faster (96.33%). On average, the speed has increased by about 8 times (87%). This result is particularly surprising because the same is true of the implementation of the mt_randMersenne Twister random number generator, and since PHP 7.1, the internal randomization algorithm has been changed to use exactly the same algorithm.

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