You could do an fopen on the URL and see if the results contain the string
"404 not found" or something. Read these pages:
http://www.php.net/manual/en/function.fopen.php
http://www.php.net/manual/en/wrappers.php
http://www.php.net/manual/en/function.stream-get-meta-data.php
Looks like with 4.3+ you can use the internal functions of PHP to do what
you are asking.
You could alternatively install curl and get the resulting HTTP code.
http://www.php.net/manual/en/ref.curl.php
Peter
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Peter Beckman Internet Guy
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