HeadersCollection::set( string $name, string|WordPressAiClientProvidersHttpCollectionslist $value ): void

Source

private function set(string $name, $value): void
{
    if (is_array($value)) {
        $normalizedValues = array_values($value);
    } else {
        // Split comma-separated string into array
        $normalizedValues = array_map('trim', explode(',', $value));
    }
    $lowerName = strtolower($name);
    // If header exists with different casing, remove the old casing
    if (isset($this->headersMap[$lowerName])) {
        $oldName = $this->headersMap[$lowerName];
        if ($oldName !== $name) {
            unset($this->headers[$oldName]);
        }
    }
    // Always use the new casing
    $this->headers[$name] = $normalizedValues;
    $this->headersMap[$lowerName] = $name;
}

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