$diffOnly = $request->getBool( 'diffonly',
$this->getContext()->getUser()->getOption( 'diffonly' ) );
- if ( isset( $diff ) && $diffOnly ) {
+ if ( $diff !== null && $diffOnly ) {
parent::view();
return;
}
// modified by subclasses
wfProfileIn( get_class( $this ) . "::importContentFormData" );
$textbox1 = $this->importContentFormData( $request );
- if ( isset( $textbox1 ) ) {
+ if ( $textbox1 !== null ) {
$this->textbox1 = $textbox1;
}
protected function outputPageStream( $resultset ) {
$last = null;
foreach ( $resultset as $row ) {
- if ( is_null( $last ) ||
+ if ( $last === null ||
$last->page_namespace != $row->page_namespace ||
$last->page_title != $row->page_title ) {
- if ( isset( $last ) ) {
+ if ( $last !== null ) {
$output = '';
if ( $this->dumpUploads ) {
$output .= $this->writer->writeUploads( $last, $this->dumpUploadFileContents );
$output = $this->writer->writeRevision( $row );
$this->sink->writeRevision( $row, $output );
}
- if ( isset( $last ) ) {
+ if ( $last !== null ) {
$output = '';
if ( $this->dumpUploads ) {
$output .= $this->writer->writeUploads( $last, $this->dumpUploadFileContents );