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Normalize language code case in LangChooser #1303

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Merged
sy-records merged 1 commit into from
Aug 5, 2025
Merged

Normalize language code case in LangChooser #1303

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2 changes: 1 addition & 1 deletion src/LangChooser.php
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Original file line number Diff line number Diff line change
Expand Up @@ -97,7 +97,7 @@ public function chooseCode(
// The language part is either a code or a code with a quality
// We cannot do anything with a * code, so it is skipped
// If the quality is missing, it is assumed to be 1 according to the RFC
if (preg_match("!([a-z-]+)(;q=([0-9\\.]+))?!", trim($value), $found)) {
if (preg_match("!([a-z-]+)(;q=([0-9\\.]+))?!", strtolower(trim($value)), $found)) {
$quality = (isset($found[3]) ? (float) $found[3] : 1.0);
$browser_langs[] = [$found[1], $quality];
}
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