Fix variable names

Author: Aayush Kadam

spanner/src/create_backup_schedule.php

@@ -76,9 +76,9 @@ function create_backup_schedule(
         'backup_schedule' => $backupSchedule,
     ]);
 
-    $operation = $databaseAdminClient->createBackupSchedule($request);
+    $created_backup_schedule = $databaseAdminClient->createBackupSchedule($request);
 
-    printf('Created backup scehedule %s' . PHP_EOL, $operation->getName());
+    printf('Created backup scehedule %s' . PHP_EOL, $created_backup_schedule->getName());
 }
 // [END spanner_create_backup_schedule]
 

spanner/src/get_backup_schedule.php

@@ -59,9 +59,9 @@ function get_backup_schedule(
         'name' => $backupScheduleName,
     ]);
 
-    $operation = $databaseAdminClient->getBackupSchedule($request);
+    $backup_schedule = $databaseAdminClient->getBackupSchedule($request);
 
-    printf('Fetched backup scehedule %s' . PHP_EOL, $operation->getName());
+    printf('Fetched backup scehedule %s' . PHP_EOL, $backup_schedule->getName());
 }
 // [END spanner_get_backup_schedule]
 

spanner/src/list_backup_schedules.php

@@ -50,10 +50,10 @@ function list_backup_schedules(
     $request = new ListBackupSchedulesRequest([
         'parent' => $databaseFullName,
     ]);
-    $operation = $databaseAdminClient->listBackupSchedules($request);
+    $backup_schedules = $databaseAdminClient->listBackupSchedules($request);
 
     printf('Backup schedules for database %s' . PHP_EOL, $databaseFullName);
-    foreach ($operation as $schedule) {
+    foreach ($backup_schedules as $schedule) {
         printf('Backup schedule: %s' . PHP_EOL, $schedule->getName());
     }
 }

spanner/src/update_backup_schedule.php

@@ -90,9 +90,9 @@ function update_backup_schedule(
         'update_mask' => $fieldMask,
     ]);
 
-    $operation = $databaseAdminClient->updateBackupSchedule($request);
+    $updated_backup_schedule = $databaseAdminClient->updateBackupSchedule($request);
 
-    printf('Updated backup scehedule %s' . PHP_EOL, $operation->getName());
+    printf('Updated backup scehedule %s' . PHP_EOL, $updated_backup_schedule->getName());
 }
 // [END spanner_update_backup_schedule]