Partial text match in array?

Hi guys,

My array is as follows:

Array
(
[0] => http://www.arau.org/ct_home.php
[1] => http://www.arau.org/
[2] => http://en.wikipedia.org/wiki/Arau
)

All I want to do is look for certain partial matches & output their position in the array. It shouldn't care about the other results ... just the first match

Eg. $string_to_match = "arau.org"

// If arau.org is found in array

echo "Found at position 0";

Running out the door for a few, so I'll keep this quick... let me know if any explanation is needed. :)

function array_find( Array $array, $needle )
{
foreach ( $array as $key => $value )
{
if ( FALSE !== strpos( $value, $needle ) )
{
$index = $key;
break;
}
}
return isset( $index ) ? $index : FALSE;
}


Usage:

$links = array(
0 => 'http://www.arau.org/ct_home.php',
1 => 'http://www.arau.org',
2 => 'http://en.wikipedia.org/wiki/Arau',
);

if ( FALSE !== ( $index = array_find( $links, 'arau.org' ) ) )
{
echo 'Found at position ', $index; // Found at position 0
}
else
{
echo 'Not found';
}

$array = array( 'http://www.arau.org/ct_home.php','http://www.arau.org/','http://en.wikipedia.org/wiki/Arau');

foreach($array as $key => $value)
{
if(stristr($value, "arau.org"))
{
$partial_match_key = $key;
break;
}
}

Brilliant guys,

Both work perfectly (you've no idea how long I've messed about with this.

I'm using the second example as I can more easily see how it works.

Thanks again.

PHP advises strpos() as faster and less memory intensive when compared to strstr().

Tim's method uses stristr(), which makes the match case-insensitive. Compliment that with stripos() for a faster case-insensitive search.