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PHP String Exercises : Generate simple random password from a specified string

PHP String: Exercise-9 with Solution

Write a PHP script to generate simple random password [do not use rand() function] from a given string.

Sample string : '1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcefghijklmnopqrstuvwxyz'
Note : Password length may be 6, 7, 8 etc.

Sample Solution:

PHP Code:

<?php
function password_generate($chars) 
{
  $data = '1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcefghijklmnopqrstuvwxyz';
  return substr(str_shuffle($data), 0, $chars);
}
  echo password_generate(7)."\n";
?>

Sample Output: 

89Qp3AK

Flowchart :

Flowchart: Generate simple random password from a specified string

PHP Code Editor:

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PHP: Tips of the Day

The PHP execution operator consists of backticks (' ') and is used to run shell commands. The output of the command will be returned, and may, therefore, be stored in a variable.

Example:

// List files
$output = 'ls';
echo "<pre>$output</pre>";

Note that the execute operator and shell_exec() will give the same result.