src/Reader.php
/**
     * Check if we need to normalize Header and if so than normalize it and set them to lower case
     * @param array $header
     * @return array - the original or normilzed header
     */
Check if we need to normalize Header and if so than normalize it and set them to lower case
@param array $header
@return array - the original or normilzed header
Check if we need to normalize Header and if so than normalize it and set them to lower case @param array $header @return array - the original or normilzed header
private function normalizeHeader(array $header): array
    {
        if ($this->isNormalizeHeader()) {
            return array_map('strtolower', $this->normalizer->normalizeHeader($header));
        }
        return $header;
    }
private function normalizeHeader ( array $ header ) : array { if ( $ this -> isNormalizeHeader ( ) ) { return array_map ( 'strtolower' , $ this -> normalizer -> normalizeHeader ( $ header ) ) ; } return $ header ; }
Check if we need to normalize Header and if so than normalize it and set them to lower case
 @param array $header
 @return array - the original or normilzed header
Check if we need to normalize Header and if so than normalize it and set them to lower case @param array $header @return array - the original or normilzed header