Header.php

<?php
 
namespace Guzzle\Http\Message;
 
use Guzzle\Common\Version;
use Guzzle\Http\Message\Header\HeaderInterface;
 
class Header implements HeaderInterface
{
    protected $values = array();
    protected $header;
    protected $glue;
 
    public function __construct($header, $values = array(), $glue = ',')
    {
        $this->header = trim($header);
        $this->glue = $glue;
 
        foreach ((array) $values as $value) {
            foreach ((array) $value as $v) {
                $this->values[] = $v;
            }
        }
    }
 
    public function __toString()
    {
        return implode($this->glue . ' ', $this->toArray());
    }
 
    public function add($value)
    {
        $this->values[] = $value;
 
        return $this;
    }
 
    public function getName()
    {
        return $this->header;
    }
 
    public function setName($name)
    {
        $this->header = $name;
 
        return $this;
    }
 
    public function setGlue($glue)
    {
        $this->glue = $glue;
 
        return $this;
    }
 
    public function getGlue()
    {
        return $this->glue;
    }
 
    public function normalize()
    {
        $values = $this->toArray();
 
        for ($i = 0, $total = count($values); $i < $total; $i++) {
            if (strpos($values[$i], $this->glue) !== false) {
                // Explode on glue when the glue is not inside of a comma
                foreach (preg_split('/' . preg_quote($this->glue) . '(?=([^"]*"[^"]*")*[^"]*$)/', $values[$i]) as $v) {
                    $values[] = trim($v);
                }
                unset($values[$i]);
            }
        }
 
        $this->values = array_values($values);
 
        return $this;
    }
 
    public function hasValue($searchValue)
    {
        return in_array($searchValue, $this->toArray());
    }
 
    public function removeValue($searchValue)
    {
        $this->values = array_values(array_filter($this->values, function ($value) use ($searchValue) {
            return $value != $searchValue;
        }));
 
        return $this;
    }
 
    public function toArray()
    {
        return $this->values;
    }
 
    public function count()
    {
        return count($this->toArray());
    }
 
    public function getIterator()
    {
        return new \ArrayIterator($this->toArray());
    }
 
    public function parseParams()
    {
        $params = $matches = array();
        $callback = array($this, 'trimHeader');
 
        // Normalize the header into a single array and iterate over all values
        foreach ($this->normalize()->toArray() as $val) {
            $part = array();
            foreach (preg_split('/;(?=([^"]*"[^"]*")*[^"]*$)/', $val) as $kvp) {
                if (!preg_match_all('/<[^>]+>|[^=]+/', $kvp, $matches)) {
                    continue;
                }
                $pieces = array_map($callback, $matches[0]);
                $part[$pieces[0]] = isset($pieces[1]) ? $pieces[1] : '';
            }
            if ($part) {
                $params[] = $part;
            }
        }
 
        return $params;
    }
 
    public function hasExactHeader($header)
    {
        Version::warn(__METHOD__ . ' is deprecated');
        return $this->header == $header;
    }
 
    public function raw()
    {
        Version::warn(__METHOD__ . ' is deprecated. Use toArray()');
        return $this->toArray();
    }
 
    protected function trimHeader($str)
    {
        static $trimmed = "\"'  \n\t";
 
        return trim($str, $trimmed);
    }
}