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# How to create an array and fill with random numbers? Cycles do not use. PHP

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Create an array to N elements and fill it with random numbers. Cycles can not be used … Help pliz how to implement this

``````\$ e = range (0,100); shuffle (\$ E); var_dump (\$ E);
``````

Range Returns an array of ordered numbers from 0 to 100 (n) in this case

shuffle it mixes.

The array of random numbers is obtained.

Cycles there, of course, are used, but in the realizations of functions. Now, if you were asked to implement the mixing of an array without shuffle, it would be much more useful for you.

If you have this task, you can – funny fun – present two options – above and one more, based on Goto with a meter. Goto is not a cycle, so you can create an empty array, generate a random number to an array, increase the counter, after the counter reaches N, jump further. Formal requirements are made, a sufficiently perverse solution is applied.

In addition to the perverted solutions below, someone will surely come up with the option with `Random_Bytes `or call `/ DEV / RANDOM `

Create an array of the desired length using `Array_Pad () `. Function `array_map () `Fill in random `RAND () `Each element value:

``````function Randarr (\$ n, \$ min = 0, \$ max = 100) {
Return Array_Map (
Function () Use (\$ Min, \$ Max) {
RETURN RAND (\$ min, \$ MAX);
},
);
}
Print_R (Randarr (5));
Print_R (Randarr (5, 22, 24));
Print_R (Randarr (5, 0, 1e9));
/ *
Array.
(
[0] = & gt; 93.
[1] = & gt; 83.
[2] = & gt; 76.
[3] = & gt; 12
[4] = & gt; 88.
)
Array.
(
[0] = & gt; 24.
[1] = & gt; 23.
[2] = & gt; 22.
[3] = & gt; 22.
[4] = & gt; 24.
)
Array.
(
[0] = & gt; 289735940.
[1] = & gt; 435158592.
[2] = & gt; 650113843.
[3] = & gt; 744380869.
[4] = & gt; 830975526.
)
* /
``````

Well, I will add another perverted method

``````\$ n = 3;
\$ L = 2;
\$ RANDNUMBER = RAND ((10 ** (\$ L-1)) ** N, (10 ** (\$ L-1)) ** N + 1);
\$ resultarray = STR_Split (\$ RANDNUMBER, \$ L);
``````

Consult a little
`Rand `Returns a random number, we build a simple range from the number `A `to the number `B `where `(10 ** (\$ L-1) ) ** n `it `10 to the length of the length of minus 1 and to the degree n `and `b `actually `10 to the degree of minus 1 and to the degree n plus 1 `, as a result, we obtain a certain pseudo random number of `n * l `characters, after a string in the mosus in the length of `L `and get the desired `array of random numbers N Long `

p.s. It will work only on PHP ^ 5.6 (for versions below there is a function `Pow `) well, and `n * l `limited to the maximum length of the number `RANDMAX `.

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