View difference between Paste ID: mBWA0tKE and 1sRwwDWc

 <?php
 
 function _($x) {
 	return htmlspecialchars($x);
 }
 
 function filter($x) {
 	$r = array();
 	foreach ($x as $v) {
 		if ($v) array_push($r, $v);
 	}
 	return $r;
 }
 
 class Input {
 
 	// The type of the input-field is stored in the attribute-slot.
 	private $typeName;
 
 	// This is an array of elements that will be rendered when the input-field
 	// type requires sub-elements, such as the `select` input-field. The values
 	// inserted here depend on the input-field type. They will be ignored when
 	// the input-field type does not require sub-elements.
 	private $subElements;
 
 	// Attributes of the input-field are saved in this array.
 	private $attributes;
 
 	// This array contains all css-classes for the input-field and will be
 	// treated special from the $attributes slot. The class-value generated
 	// here will overwrite attributes set in the $attributes array.
 	private $classes;
 
 	public function __construct($typeName, $id=null, $class=null) {
 		$this->typeName = $typeName;
 		$this->subElements = array();
 		$this->attributes = array();
 		$this->classes = array();
 
 		if ($id !== null)
 			$this->setAttribute('id', $id);
 		if ($class !== null)
 			$this->setClasses(explode(' ', $class));
 	}
 
 	public function setClasses($classes) {
-		foreach ($args as $className) {
+
-			$contained = array_search($className, $this->classes);
+
-			if ($contained === false) {
+
-				array_push($this->classes, $className);
+
 	}
 
 	public function addClass(/* ... */) {
 		$args = func_get_args();
 		$this->addClassA($args);
 	}
 
 	public function addClassA($array) {
 		foreach ($array as $className) {
 			// Class-names with spaces in it will be added seperately, again.
 			$multipleNames = filter(explode(' ', $className));
 			if (count($multipleNames) > 1) {
 				$this->addClassA($multipleNames);
 			}
 			elseif ($multipleNames) {
 				$className = $multipleNames[0];
 
 				$contained = array_search($className, $this->classes);
 				if ($contained === false) {
 					array_push($this->classes, $className);
 				}
 			}
 		}
 	}
 
 	public function removeClass($className) {
 		$index = array_search($className, $this->classes);
 		if ($index !== false) {
 			unset($this->classes[$index]);
 		}
 	}
 
 	public function setAttribute($name, $value) {
 		if ($name == 'class' or $name == 'type') {
-		$string .= '>';
+
 		}
 		$this->attributes[$name] = $value;
 	}
-		$string .= '</input>';
+
 	// removeAttribute()
 	// hasAttribute()
 
 	public function render() {
 		$string = '<input type="' . _($this->typeName) . '" ';
 
-$i = new Input('text', 'myInput', 'foo bar');
+
-$i->addClass('foo', 'baar', 'spam', 'eggs');
+
-print $i->render();
+
 			$string .= 'class="' . $classNames . '" ';
 		}
 
 		// Render the rest of the attributes.
 		foreach ($this->attributes as $key => $value) {
 			$string .= $key . '="' . _($value) . '" ';
 		}
 
 		// Special treatment for `select`, etc..
 
 		$string .= '/>';
 
 		return $string;
 	}
 
 }
 ?>
 <!DOCTYPE html>
 <html>
 	<body>
 		<?php
 		$i = new Input('text', 'myInput', 'foo bar');
 		$i->addClass('foo', 'baar', 'spam       FU', 'eggs');
 		print $i->render();
 		?>
 	</body>
 </html>