getrandmax(): largest possible random value

<?Php
echo getrandmax(); // Output 2147483647
?>

int getrandmax ( void )

Example 1: Generating Random Numbers Up to getrandmax()

<?php
$max = getrandmax();
echo rand(0, $max);  
// Output: A random number between 0 and the maximum possible value
?>

Example 2: Using getrandmax() for Random Floating-Point Numbers

<?php
$max = getrandmax();
$randomFloat = rand() / $max;
echo $randomFloat;  // Output: A random float between 0 and 1
?>

Example 3: Generate Random Numbers with Dynamic Limits

<?php
$max = getrandmax();
$min = $max / 10;
echo rand($min, $max);  // Output: A random number between 1/10th of max and the max value
?>

Example 4: Random Percentage Calculation

<?php
$percentage = rand(0, getrandmax()) / getrandmax() * 100;
echo "Random percentage: $percentage%";  // Output: A random percentage between 0 and 100
?>

Subhendu Mohapatra

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