mt_rand(): generates a random integer using the Mersenne Twister algorithm

echo mt_rand(10,100); // Output is 32 

int mt_rand ( int $min, int $max)

Example

echo mt_rand();

2147483647

Example: Using mt_srand() for Reproducible Results

mt_srand(100); 
echo mt_rand(1, 100);  // Output: 52
echo mt_rand(1, 100);  // Output: 5

Example: Generating Random Float Numbers

$min = 0;
$max = 1;
echo $min + (mt_rand() / mt_getrandmax()) * ($max - $min);  // Output: Random float between 0 and 1

Example: Generating Random Passwords

$characters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
$password = '';
for ($i = 0; $i < 8; $i++) {
    $password .= $characters[mt_rand(0, strlen($characters) - 1)];
}
echo $password;  // Output: Random 8-character password

Example: Generating Random Colors

$red = mt_rand(0, 255);
$green = mt_rand(0, 255);
$blue = mt_rand(0, 255);
echo sprintf("#%02x%02x%02x", $red, $green, $blue);  // Output: Random hex color

Example: Random Shuffle of an Array

$arr = [1, 2, 3, 4, 5];
shuffle($arr);
print_r($arr);  // Output: Array elements in random order

Subhendu Mohapatra

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