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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
<?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
<?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.
Updated on: 02-Jul-2020
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