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<?php |
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namespace Tuum\View; |
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class Section |
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{ |
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/** |
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* do not render section if the section has this value. |
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*/ |
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const NO_SECTION_RENDER = false; |
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/** |
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* @var array |
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*/ |
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private $section_data = []; |
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/** |
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* @var int |
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*/ |
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private $ob_level = 0; |
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/** |
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* start capturing a section. |
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*/ |
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public function start() |
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{ |
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$this->ob_level ++; |
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ob_start(); |
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} |
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/** |
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* end capture with name. |
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* |
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* @param $name |
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*/ |
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public function saveAs($name) |
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{ |
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$this->section_data[$name] = ob_get_clean(); |
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$this->ob_level--; |
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if ($this->ob_level) { |
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echo $this->section_data[$name]; |
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} |
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} |
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/** |
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* get a captured section. |
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* |
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* @param string $name |
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* @return string |
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*/ |
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public function get($name) |
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{ |
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return array_key_exists($name, $this->section_data) ? $this->section_data[$name] : ''; |
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} |
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/** |
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* @param string $name |
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* @param string|mixed $data |
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* @return $this |
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*/ |
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public function set($name, $data) |
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{ |
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$this->section_data[$name] = $data; |
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return $this; |
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} |
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/** |
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* @param string $name |
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*/ |
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public function markNotToRender($name) |
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{ |
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$this->section_data[$name] = self::NO_SECTION_RENDER; |
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} |
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/** |
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* @param string $name |
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* @return bool |
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*/ |
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public function exists($name) |
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{ |
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$names = func_get_args(); |
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foreach ($names as $name) { |
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if (array_key_exists($name, $this->section_data)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* render the part of template as $name section. |
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* will not render if the section is marked as NO_RENDER |
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* |
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* @param string $name |
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*/ |
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public function renderAs($name) |
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{ |
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if ($this->get($name) !== self::NO_SECTION_RENDER) { |
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echo ob_get_clean(); |
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} else { |
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ob_end_clean(); |
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} |
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} |
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/** |
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* render the part of a template only if section $name does not exist. |
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* |
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* @param string $name |
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*/ |
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public function replaceBy($name) |
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{ |
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$content = $this->get($name); |
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if ($content === self::NO_SECTION_RENDER) { |
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ob_end_clean(); |
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return; // do not render anything. |
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} elseif ($content) { |
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ob_end_clean(); |
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echo $content; |
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} else { |
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echo ob_get_clean(); |
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} |
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} |
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} |
TuumPHP /
View
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.