PHP pseudo random number and true random number detailed, pseudo random number detailed
The first thing to declare is that the computer does not produce an absolute random number, and the computer can only produce "pseudo-random numbers". In fact,
Example 9-25. Generate a random integer
1 #! /Bin/bash 2 3 # each call to $ random will return different random integers. 4 # The general range is 0-32767 (signed 16-bit integer ). 5 6 maxcount = 10 7 COUNT = 1 8 9 echo 10 echo "$
About Random Number Security 0x00
I talked to my friends about an interesting phenomenon. during the school recruitment interview in the last two years, most of my students did not have any basic cryptographic knowledge, even those with some
This article mainly introduces PHP's pseudo-random number and real random number details. This article first explains the concepts related to the real random number and pseudo-random number, and gives the comparison using mt_rand () an example code
This article mainly introduces the pseudo random number and the true random number of PHP, this paper first explained the concept of true random number and pseudo random number, and gave a better pseudo-random number than using Mt_rand () function
This article mainly introduces PHP's pseudo-random number and real random number details. This article first explains the concepts related to the real random number and pseudo-random number, and gives the comparison using mt_rand () an example code
The first thing to declare is that the computer does not produce an absolutely random random number, and the computer can only produce "pseudorandom numbers". In fact, the absolute random random number is only an ideal random number, even if the
first, the questionit is sometimes necessary to use random numbers under the shell to summarize the method of generating random numbers. The computer produces only "pseudo-random numbers" and does not produce absolute random numbers (which is an
PHP pseudo-random number and real random number details. PHP pseudo-random number and real random number details this article mainly introduces PHP pseudo-random number and real random number details, this article first explains the concept of real
In daily life, random numbers are often used. They want to drop dice, capture dice, and draw lots. It's easy to implement. So we are doingProgramIt's really not easy to design a random number through your own program. Currently, many operating
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