<?php
// Generate a password of length = Max(8, $len)
function generatePassword($len)
{
	$lower = array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z');
	$upper = array('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
	$specials = array('!','"','#','$','%','&','\'','(',')','*','+',',','-','.','/',':',';','<','=','>','?','@','[','\\',']','^','_','`','{','|','}','~');
	$digits = array('0','1','2','3','4','5','6','7','8','9');
	$all = array($lower, $upper, $specials, $digits);
 
	$pwd = $lower[array_rand($lower, 1)];
	$pwd = $pwd . $upper[array_rand($upper, 1)];
	$pwd = $pwd . $specials[array_rand($specials, 1)];
	$pwd = $pwd . $digits[array_rand($digits, 1)];
 
	for($i = strlen($pwd); $i < max(8, $len); $i++)
	{
		$temp = $all[array_rand($all, 1)];
		$pwd = $pwd . $temp[array_rand($temp, 1)];
	}
	return str_shuffle($pwd);
}
 
echo generatePassword(1);

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