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<?php |
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/** |
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* |
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* This file is part of Aura for PHP. |
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* |
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* @license http://opensource.org/licenses/bsd-license.php BSD |
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* |
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*/ |
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namespace Aura\Html\Helper; |
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/** |
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* |
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* Helper to generate a `<title>` tag. |
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* @package Aura.Html |
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* |
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*/ |
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class Title extends AbstractHelper |
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{ |
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/** |
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* The title value. |
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* |
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* @var string |
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* |
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*/ |
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protected $title = null; |
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/** |
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* |
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* Returns the helper so you can call methods on it; alternatively, if you |
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* pass a title string, it will be as you called `append()`. |
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* |
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* @param string $text Text to append to the existing title. |
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* |
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* @return self |
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* |
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*/ |
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public function __invoke($text = null) |
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{ |
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if ($text) { |
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$this->append($text); |
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} |
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return $this; |
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} |
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/** |
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* |
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* Returns the current title string. |
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* |
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* @return string The current title string. |
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* |
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*/ |
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public function __toString() |
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{ |
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$title = $this->indent(1, "<title>{$this->title}</title>"); |
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$this->title = null; |
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return $title; |
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} |
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/** |
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* |
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* Escapes and sets text as the <title> string. |
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* |
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* @param string $text The title string. |
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* |
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* @return self |
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* |
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*/ |
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public function set($text) |
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{ |
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$this->title = $this->escaper->html($text); |
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return $this; |
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} |
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/** |
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* |
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* Sets raw text as the <title> string. |
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* |
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* @param string $text The title string. |
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* |
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* @return self |
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* |
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*/ |
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public function setRaw($text) |
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{ |
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$this->title = $text; |
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return $this; |
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} |
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/** |
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* |
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* Gets the currently set title string without HTML tag |
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* |
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* @return string |
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* |
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*/ |
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public function get() |
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{ |
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return $this->title; |
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} |
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/** |
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* |
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* Escapes and appends text to the end of the current <title> string. |
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* |
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* @param string $text The string to be appended to the title. |
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* |
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* @return self |
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* |
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*/ |
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public function append($text) |
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{ |
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$this->title .= $this->escaper->html($text); |
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return $this; |
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} |
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/** |
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* |
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* Appends raw text to the end of the current <title> string. |
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* |
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* @param string $text The string to be appended to the title. |
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* |
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* @return self |
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* |
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*/ |
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public function appendRaw($text) |
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{ |
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$this->title .= $text; |
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return $this; |
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} |
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/** |
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* |
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* Escapes and prepends text to the beginning of the current <title> string. |
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* |
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* @param string $text The string to be appended to the title. |
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* |
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* @return self |
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* |
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*/ |
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public function prepend($text) |
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{ |
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$this->title = $this->escaper->html($text) . $this->title; |
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return $this; |
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} |
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/** |
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* |
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* Prepends raw text to the beginning of the current <title> string. |
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* |
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* @param string $text The string to be appended to the title. |
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* |
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* @return self |
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* |
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*/ |
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public function prependRaw($text) |
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{ |
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$this->title = $text . $this->title; |
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return $this; |
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} |
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} |
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In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: