H:/Workspace/php-axiom/www/php-axiom/libraries/axiom/axBaseHelper.class.php

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<?php
abstract class axBaseHelper implements axHelper {

    protected $_node_name;

    protected $_node_value;

    protected $_attributes;

    protected $_children;

    public function __construct ($node_name, $attributes = array(), $node_value = null) {
        $this->_node_name  = $node_name;
        $this->_node_value = $node_value;
        $this->_attributes = $attributes;
    }

    public function setAttributes ($attributes) {
        foreach ($attributes as $key => $value) {
            $this->_attributes[$key] = $value;
        }
        return $this;
    }

    public function setValue ($value) {
        $this->_node_value = $value;
    }

    public function getValue () {
        return $this->_node_value;
    }

    public function __call ($method, $args) {
        if (strpos($method, 'set') === 0) {
            $this->_attributes[lcfirst(substr($method, 3))] = $args[0];
        }
        elseif (strpos($method, 'get') === 0) {
            return isset($this->_attributes[lcfirst(substr($method, 3))]) ?
                $this->_attributes[lcfirst(substr($method, 3))] : null;
        }
        return $this;
    }

    public function appendChild ($node) {
        return $this->_children[] = $node;
    }

    public function prependChild ($node) {
        array_unshift($this->_children, $node);
        return $this->_children[0];
    }

    public function __toString () {
        $attr = array();
        foreach ($this->_attributes as $name => $value) {
            $attr[] = "$name=\"$value\"";
        }
        $node = "<{$this->_node_name} " . implode(' ', $attr);

        if (!count($this->_children) && ($this->_node_value === null))
            return $node . " />";
        else
            $node .= ">";

        if ($this->_node_value !== null)
            $node .= $this->_node_value;

        if (count($this->_children))
            $node .= implode($this->_children);

        return $node . "</{$this->_node_name}>";
    }
}

if (!function_exists("lcfirst")) {
    function lcfirst ($string) {
        $string{0} = strtolower($string{0});
        return $string;
    }
}