[SOLVED] Find what character is at what position

[blufish]

Hey guys, I need to know how to find what character is at a certain position, like

 

If I told php I wanted to know what the 4th character in a string which was "hello world!" It would output "l" anybody know how to do this or something like this?  any help is greatly appreciated.

[trq]

<?php

  $s = "hello world";
  echo $s[3];

?>

 

You might also take a look at substr.

[blufish]

it doesn't seem to be working, here is the code I have been making:

 

<?php
$code = $_POST['code'];
$leng = strlen($code);
$ncode = "<script type='text/javascript'>";
while($leng>0)
{
$ncode = $ncode."var a".$leng." = ".substr($ncode, $leng).";";
$leng = $leng-1;
}
$ncode = $ncode."</script>";
echo $ncode;
?>

 

...Trying to make my own script confuzzler ...

 

To explain what it's supposed to do,

 

It's supposed to make a javascript which defines a bunch of variables based on the position of characters in the string.

 

I also tried this, It doesn't work:

<?php
$code = $_POST['code'];
$leng = strlen($code);
$ncode = "<script type='text/javascript'>";
while($leng>0)
{
$ncode = $ncode."var a".$leng." = ".$code[$leng].";";
$leng = $leng-1;
}
$ncode = $ncode."</script>";
echo $ncode;
?>

[jonsjava]

When I run your code:

<?php
$code = "this is a test";
$leng = strlen($code);
$ncode = "<script type='text/javascript'>\n";
while($leng>0)
{
$ncode = $ncode."var a".$leng." = ".$code[$leng].";\n";
$leng = $leng-1;
}
$ncode = $ncode."</script>";
echo $ncode;
?>

I get

<script type='text/javascript'>
var a14 = ;
var a13 = t;
var a12 = s;
var a11 = e;
var a10 = t;
var a9 =  ;
var a8 = a;
var a7 =  ;
var a6 = s;
var a5 = i;
var a4 =  ;
var a3 = s;
var a2 = i;
var a1 = h;
</script>

What am I supposed to be seeing?

[blufish]

That seems right, for what I've done in the script so far.  Did you change the code or something?  I'll try the code again...