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2809 rexy 1
<?php
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/**
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 * Smarty Method AppendByRef
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 *
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 * Smarty::appendByRef() method
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 *
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 * @package    Smarty
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 * @subpackage PluginsInternal
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 * @author     Uwe Tews
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 */
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class Smarty_Internal_Method_AppendByRef
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{
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    /**
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     * appends values to template variables by reference
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     *
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     * @api  Smarty::appendByRef()
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     * @link http://www.smarty.net/docs/en/api.append.by.ref.tpl
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     *
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     * @param \Smarty_Internal_Data|\Smarty_Internal_Template|\Smarty $data
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     * @param string                                                  $tpl_var the template variable name
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     * @param mixed                                                   &$value  the referenced value to append
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     * @param bool                                                    $merge   flag if array elements shall be merged
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     *
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     * @return \Smarty_Internal_Data|\Smarty_Internal_Template|\Smarty
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     */
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    public static function appendByRef(Smarty_Internal_Data $data, $tpl_var, &$value, $merge = false)
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    {
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        if ($tpl_var !== '' && isset($value)) {
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            if (!isset($data->tpl_vars[ $tpl_var ])) {
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                $data->tpl_vars[ $tpl_var ] = new Smarty_Variable();
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            }
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            if (!is_array($data->tpl_vars[ $tpl_var ]->value)) {
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                settype($data->tpl_vars[ $tpl_var ]->value, 'array');
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            }
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            if ($merge && is_array($value)) {
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                foreach ($value as $_key => $_val) {
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                    $data->tpl_vars[ $tpl_var ]->value[ $_key ] = &$value[ $_key ];
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                }
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            } else {
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                $data->tpl_vars[ $tpl_var ]->value[] = &$value;
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            }
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            if ($data->_isTplObj() && $data->scope) {
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                $data->ext->_updateScope->_updateScope($data, $tpl_var);
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            }
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        }
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        return $data;
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    }
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}