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Test whether URL exists

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  1. function url_exists($url) {
  2.     $hdrs = @get_headers($url);
  3.     return is_array($hdrs) ? preg_match('/^HTTP\\/\\d+\\.\\d+\\s+2\\d\\d\\s+.*$/',$hdrs[0]) : false;
  4. }

URL: http://us2.php.net/manual/en/function.file-exists.php#84918

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