Help with ? and :

Can someone help me interpret this snippet?

printf("<p>The two arrays are %sidentical.</p>\n", $arr1 === $arr2 ? ''
: 'not ');

It is easy to see what it does. It compares two arrays and inserts
either a space or a "not" space in the template string.

The parts I don't understand are the "?" and the ":". I can find no
documentation anywhere of the "?" and the ":".

I have had trouble generally getting good documentation on printf() and
sprintf().

Thanks,

--Kenoli

Kenoli Oleari
Neighborhood Assemblies Network
kenoli@xxxxxxx
510-601-8217
http://www.horizonsofchange.com
http://www.sfnan.org

.

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