Offset no contained??

[xProteuSx]

I have an array, $old_array, that looks like this (each line is a different index):

 

1|1|0|20|0|0

1|2|0|20|0|0

1|3|0|20|0|0

1|4|0|20|0|0

1|5|0|20|0|0

1|6|0|20|0|0

1|7|0|20|0|0

33|3|0|15|0|0

33|4|0|15|0|0

33|5|0|15|0|0

34|1|0|15|0|0

34|2|3|15|0|0

34|3|2|15|0|0

34|4|3|15|0|0

34|5|0|15|0|0

34|6|2|15|0|0

34|7|0|15|0|0

 

It is an array of strings, which are exploded to create other arrays.

 

Anyways, then I have a foreach loop like this:

 

foreach($old_array as $val)

                {

                $check = substr($val, 0, strpos( $val,'|',strpos($val,'|')+1));

                $array_temp[ $check ] = TRUE;

                }

 

I am getting this error (ONLY IN INTERNET EXPLORER!):

 

Warning: strpos() [function.strpos]: Offset not contained in string in /home/pgagnon/public_html/chores_uni.html on line 131

 

Line 131 is this one:

 

$check = substr($val, 0, strpos( $val,'|',strpos($val,'|')+1));

 

Why does this work in Firefox, Opera, Safari, Chrome, but not IE??  Microsoft can eat shit until it dies!