echo GeneratePassword($input, $count);
function GeneratePassword($chars, $len)
{
$charsLen = strlen($chars) - 1;
//echo $charsLen;
str_shuffle($chars);
//打乱字符串
$output = '';
for ($i = 0; $i < $len; $i++) {
$output .= $chars[mt_rand(0, $charsLen)];
}
return $output;
}
echo "<br/>";
$arr = array("ffffffff", "sdfsfsd", "fdsfsfsdfsfds", "fdsdfdssfsdfsfsdfds");
echo GetLongestString($arr);
function GetLongestString($arrayString)
{
$i = 0;
foreach ($arrayString as $str) {
if (strlen($str) > $i) {
$i = strlen($str);
}
}
return $i;
}
echo "<br/>";
// 6
echo "time:";
echo is_working_hour(1420077600);
function is_working_hour($time = null)
return null;
$ret = str_shuffle($str);
while (strlen($ret) < $len)
{
$ret = $ret . str_shuffle($str);
}
return $ret;
*/
return substr(str_shuffle(str_pad($str, $len, $str)), 0, $len);
}
echo "<h4>GeneratePassword</h4>";
echo GeneratePassword(-5, "abc") . "<br />";
echo GeneratePassword(0, "abc") . "<br />";
echo GeneratePassword(2, "") . "<br />";
echo GeneratePassword(1, null) . "<br />";
echo GeneratePassword(3, "abac") . "<br />";
echo GeneratePassword(6, "abac") . "<br />";
echo GeneratePassword(4, "abac") . "<br />";
function GetLongestString()
{
return max(array_map("strlen", func_get_args()));
}
echo "<h4>GetLongestString</h4>";
echo GetLongestString("abc", "a", "abcde", "abcd") . "<br />";
echo GetLongestString() . "<br />";
echo GetLongestString("") . "<br />";
$time_start = microtime_float();
for ($i = 0; $i < 100000; $i++) {
GetLongestString("abc", "a", "abcde", "abcd", "abc", "saea", "abcddfse", "absdcd", "abcasdfgasdgasasd", "sadfa", "abcdsdgdge", "abgsdfscd");
}
echo microtime_float() - $time_start;
