[SOLVED] Bug - Small error

[scuff]

Please explain why this sometimes outputs nothing:

 

<?php
$morecharacters = "1234567890abcedefghijklmnopqrstuvwxyz";
echo $morecharacters[mt_rand(0, strlen($morecharacters))-1];
?>

[Mark Baker]

Please explain why this sometimes outputs nothing:

Because $morecharacters is a string, but you're trying to treat it as though it were an array.

You're also potentially getting a negative entry value.

 

$morecharacters = "1234567890abcedefghijklmnopqrstuvwxyz";
$element = mt_rand(0, strlen($morecharacters)-1);
echo $morecharacters{$element};

 

$morecharacters = "1234567890abcedefghijklmnopqrstuvwxyz";
$morecharactersArray = str_split($morecharacters);
$element = mt_rand(0, strlen($morecharacters)-1);
echo $morecharactersArray[$element];