Need a hand about arrays,

[justcrapx]

can anyone tell me why does this:
[code]<?php
$arr = array();
$a = 0;
while($a < 5)
{
$arr['$a'] = 10 + $a;
$a++;
echo $arr['$a'] . " - ";
}
echo "<br/>" . $arr[3];
?>[/code]

output this:
10 - 11 - 12 - 13 - 14 -

it does not print $arr[3], is there a syntax error?

[fert]

computers count up from zero

[owenjh]

Try:

[CODE]
$arr = array();
$a = 0;
while($a < 5)
{
$arr["$a"] = 10 + $a;

echo $arr["$a"] . " - ";
$a++;
}

echo "<br/>" . $arr[3];
[/CODE]

[justcrapx]

works fine, thanks