fix: bug

diff --git a/index.php b/index.php
index 6acd011..76ba5d4 100755 (executable)
--- a/index.php
+++ b/index.php
@@ -65,7 +65,7 @@ $last_time = $top_time + 3600 * $program_length;
                foreach( $reca as $prg ) {
                        // 前プログラムとの空きを調べる
                        $start = toTimestamp( $prg['starttime'] );
-                       if( $start - $prev_end ) {
+                       if( ($start - $prev_end) > 0 ) {
                                $height = ($start-$prev_end) * $settings->height_per_hour / 3600;
                                $height = $height;
                                $programs[$st]['list'][$num]['category_none'] = "none";
@@ -106,7 +106,7 @@ $last_time = $top_time + 3600 * $program_length;
                exit( $e->getMessage() );
        }
        // 空きを埋める
-       if( $last_time - $prev_end ) {
+       if( ($last_time - $prev_end) > 0 ) {
                $height = ($last_time - $prev_end) * $settings->height_per_hour / 3600;
                $height = $height;
                $programs[$st]['list'][$num]['category_name'] = "none";