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CHAPTER 7 SIMPLEXML 265 } } } } /* Return array containing any captured errors */ return $arRet; } /* Initial states for application variables */ $sxetemplate = NULL; $bPreview = FALSE; $bError = FALSE; $bSave = FALSE; /* BEGIN ACTUAL PROCESSING */ if ($sxe = simplexml_load_file($padspec)) { if (isset($_POST[’Save’]) || isset($_POST[’Preview’]) || isset($_POST[’Edit’])) { /* Working template in hidden field is Base64 encoded and must be decoded */ $sxetemplate = new SimpleXMLElement(base64_decode($_POST[’ptemplate’])); /* Loop through $_POST vars. vars that are arrays are PAD fields to be set */ foreach($_POST AS $name=>$value) { if (is_array($value)) { setValue($sxetemplate, $name, $value); } } if (isset($_POST[’Save’])) { /* Save finalized working template to file */ $sxetemplate->asXML($savefile); $bSave = TRUE; } elseif (isset($_POST[’Preview’])) { /* Validate the working template */ $arRet = validatePAD($sxe, $sxetemplate); if (count($arRet) > 0) { $bError = TRUE; print “ERRORS FOUND
“; /* Print out errors returned from validatePAD() */ foreach ($arRet AS $key=>$value) { print $value[0].”: “.$value[1].”
“; } } else { /* Working template was validated so allow data to be previewed */ $bPreview = TRUE; } } } else {

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