How to Generate Random String in PHP
In this tutorial, we are going to see how to generate a random string in PHP. We can achieve that by storing all possible letters in a string and then generate a random index from 0 to the length of the string -1. As shown in the following code.
How to Generate Random String in PHP
<?php
function getRandomStr($n) {
// Store all possible letters in a string.
$str = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$randomStr = '';
// Generate a random index from 0 to the length of the string -1.
for ($i = 0; $i < $n; $i++) {
$index = rand(0, strlen($str) - 1);
$randomStr .= $str[$index];
}
return $randomStr;
}
$n=25;
echo getRandomStr($n);
?>
Output:
E1fMe0TwBJVvpzBeO0zL0jFJw
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