Weirdness with a POST array and newlines.

[awpti]

So, here's the sample code:

 

It assumes no string is longer than 3 characters for the ord() function at the end.

 

<form method="post" action="test.php">
<textarea name="test"></textarea><br />
<input type="submit" name="testing" value="what the f!" />

<?php

$res = explode("\n", $_POST['test']);

foreach($res as $val)
{
       $fix[] = str_replace("\n", '', $val);
}

echo '<pre>';
var_dump($fix);
echo '</pre><br />';

echo 'Ordinal Value of last char: '.ord($fix[4]{3});

 

Weird thing?

 

You'll notice that the var_dump() shows each array entry as having a newline character except for the last one. If you echo the ordinal value of that extraneous character, it comes back as: 0 (0 == NULL)

 

My question:

 

What the HELL? Why is this kicking back as a newline character when ord() clearly shows it's null? It shouldn't even display, let alone have an ordinal value.

[Mchl]

I guess you're running Windows.

In windows newline mark is composed of two bytes: \r\n

You're only removing \n.

 

  $fix[] = str_replace(array("\n","\r"), '', $val);