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@joshbuchea

joshbuchea/force-lowercase-urls.php

Created October 18, 2015 06:28
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A function to redirect uppercase URLs to lowercase.
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force-lowercase-urls.php
/**
* Changes the requested URL to lowercase.
*
* Only if URL does not include a filename or query variable.
*/
function force_lowercase_urls() {
// Grab requested URL
$url = $_SERVER['REQUEST_URI'];
// If URL contains a period, halt (likely contains a filename and filenames are case specific)
if ( preg_match('/[\.]/', $url) ) {
return;
}
// If URL contains a question mark, halt (likely contains a query variable)
if ( preg_match('/[\?]/', $url) ) {
return;
}
if ( preg_match('/[A-Z]/', $url) ) {
// Convert URL to lowercase
$lc_url = strtolower($url);
// 301 redirect to new lowercase URL
header('Location: ' . $lc_url, TRUE, 301);
exit();
}
}
@joshbuchea
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@SinnlosS no good reason, this is just an old gist I created 5 years ago and probably didn't spend much time slapping together 😄

I have a free plugin in the WP marketplace with this same functionality and I may have resolved the issue there but I can't recall:

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