ThinkPHP/Library/Vendor/Smarty/sysplugins/smarty_internal_resource_php.php

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<?php

/**
 * Smarty Internal Plugin Resource PHP
 *
 * Implements the file system as resource for PHP templates
 *
 * @package Smarty
 * @subpackage TemplateResources
 * @author Uwe Tews
 * @author Rodney Rehm
 */
class Smarty_Internal_Resource_PHP extends Smarty_Resource_Uncompiled {
    /**
     * container for short_open_tag directive's value before executing PHP templates
     * @var string
     */
    protected $short_open_tag;

    /**
     * Create a new PHP Resource
     *
     */
    public function __construct()
    {
        $this->short_open_tag = ini_get( 'short_open_tag' );
    }

    /**
     * populate Source Object with meta data from Resource
     *
     * @param Smarty_Template_Source $source source object
     * @param Smarty_Internal_Template $_template template object
     * @return void
     */
    public function populate(Smarty_Template_Source $source, Smarty_Internal_Template $_template=null)
    {
        $source->filepath = $this->buildFilepath($source, $_template);

        if ($source->filepath !== false) {
            if (is_object($source->smarty->security_policy)) {
                $source->smarty->security_policy->isTrustedResourceDir($source->filepath);
            }

            $source->uid = sha1($source->filepath);
            if ($source->smarty->compile_check) {
                $source->timestamp = @filemtime($source->filepath);
                $source->exists = !!$source->timestamp;
            }
        }
    }

    /**
     * populate Source Object with timestamp and exists from Resource
     *
     * @param Smarty_Template_Source $source source object
     * @return void
     */
    public function populateTimestamp(Smarty_Template_Source $source)
    {