random_int(): Random integer generator
Generate a cryptographically secure random integer
random_int() returns a uniformly selected integer in the inclusive range you provide and is suitable for security-sensitive uses that need an unpredictable integer.
$code = random_int(100000, 999999);
echo $code;
Start with this current pattern. The examples below are retained for additional variations, output and reference.
echo random_int(8,10); // Random Output starting from 8 to 10
random_int ( min,max);
Available in PHP 7, PHP 8
We can generate random value by using rand() PHP. We can specify a range and the random value between those two ranges (inclusive) will be generated.
Can be used for cryptographic random integers for shuffling a deck of cards or poker games.
Note that here we are generating a random number only. To get any random characters we can use arrays. The details on how to generate random characters is available here.
Example 1: Generating Random Numbers Between 1 and 100
<?php
echo random_int(1, 100); // Output: A random number between 1 and 100
?>
Example 2: Random Number for Cryptographic Purposes
<?php
echo random_int(1000, 9999); // Secure random number between 1000 and 9999
?>
Example 3: Generating Lottery Numbers
<?php
for ($i = 0; $i < 6; $i++) {
echo random_int(1, 49) . " "; // Output: 6 random lottery numbers between 1 and 49
}
?>
Example 4: Generating Random Negative Integers
<?php
echo random_int(-50, -1); // Output: A random negative number between -50 and -1
?>
How to generate random string having alphabets and digits
Rounding off value
Math Functions random() Rounding off value
Subhendu Mohapatra
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