PHP program different ways to generate a random string

Using bin2hex function

Example

<?php
$num = 12;
$res = bin2hex(random_bytes($num));
print_r("The randomly generated string is : ");
echo $res;
?>

Output

The randomly generated string is : f1db16115fa93b98493d388b

A number is defined and the bin2hex function is called on this number. Inside the bin2hex function the ‘random_bytes’ function is called on this number. The generated random string is printed on the console.

Using hashing function

Example

Live Demo

<?php
$my_str = rand();
$res = sha1($my_str);
print_r("The randomly generated string using hashing function sha1 is :");
echo $res;
?>

Output

The randomly generated string using hashing function sha1 is :9a4a73c35ac034832332977f3d5accd8eace5260

A number is defined by calling the ‘rand’ function. The sha1 hashing function is called on this randomly generated number. The generated random string is printed on the console.

Using built-in function uniqid

Example

Live Demo

<?php
$res = uniqid();
print_r("The randomly generated string using uniqid function is : ");
echo $res;
?>

Output

The randomly generated string using uniqid function is : 5ed4b884cef34

A number is defined by calling the ‘rand’ function. The sha1 hashing function is called on this randomly generated number. The generated random string is printed on the console.

AmitDiwan

Published on 02-Jul-2020 06:47:16

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