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(PHP ActiveX) CanonicalizeUrlThe CanonicalizeUrl method is a utility function that canonicalizes a URL into a standard form to avoid duplicates. For example, "http://www.chilkatsoft.com/" and "http://www.chilkatsoft.com/default.asp" are the same URL.
<?php // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Spider') $spider = new COM("Chilkat.Spider"); // Does a DNS lookup to find the default domain, which may or may not include the "www." depending on the DNS results. // Also domain names are converted to lowercase: print $spider->canonicalizeUrl('http://www.ChilkatSoft.com/') . "\n"; // CanonicalizeUrl will drop the HTML fragment: print $spider->canonicalizeUrl('http://www.chilkatsoft.com/purchase2.asp#buyZip') . "\n"; // If a username/password is in the URL, it gets dropped: print $spider->canonicalizeUrl('http://username:password@www.chilkatsoft.com/purchase2.asp#buyZip') . "\n"; // Port 80 and 443 are dropped: print $spider->canonicalizeUrl('http://www.chilkatsoft.com:80/purchase2.asp') . "\n"; print $spider->canonicalizeUrl('https://www.paypal.com:443/') . "\n"; // Removes default pages: // default.asp, index.html, index.htm, default.html, index.htm, default.htm // index.php, index.asp, default.php, .cfm, .aspx, ,php3, .pl, .cgi, .txt, .shtml, .phtml print $spider->canonicalizeUrl('http://www.chilkatsoft.com/index.asp') . "\n"; print $spider->canonicalizeUrl('http://www.chilkatsoft.com/index.asp') . "\n"; print $spider->canonicalizeUrl('http://www.chilkatsoft.com/index.php') . "\n"; print $spider->canonicalizeUrl('http://www.chilkatsoft.com/index.pl') . "\n"; print $spider->canonicalizeUrl('http://www.chilkatsoft.com/index.htm') . "\n"; // Output: // http://chilkatsoft.com/ // http://chilkatsoft.com/purchase2.asp // http://chilkatsoft.com/purchase2.asp // http://chilkatsoft.com/purchase2.asp // https://www.paypal.com/ // http://chilkatsoft.com/ // http://chilkatsoft.com/ // http://chilkatsoft.com/ // http://chilkatsoft.com/ // http://chilkatsoft.com ?> |
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