smarty_internal_compile_eval.php

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<?php
class Smarty_Internal_Compile_Eval extends Smarty_Internal_CompileBase {

    public $required_attributes = array('var');
    public $optional_attributes = array('assign');
    public $shorttag_order = array('var','assign');

    public function compile($args, $compiler)
    {
        $this->required_attributes = array('var');
        $this->optional_attributes = array('assign');
        // check and get attributes
        $_attr = $this->getAttributes($compiler, $args);
        if (isset($_attr['assign'])) {
              // output will be stored in a smarty variable instead of beind displayed
            $_assign = $_attr['assign'];
        }

        // create template object
        $_output = "\$_template = new {$compiler->smarty->template_class}('eval:'.".$_attr['var'].", \$_smarty_tpl->smarty, \$_smarty_tpl);";
        //was there an assign attribute?
        if (isset($_assign)) {
            $_output .= "\$_smarty_tpl->assign($_assign,\$_template->fetch());";
        } else {
            $_output .= "echo \$_template->fetch();";
        }
        return "<?php $_output ?>";
    }

}

?>