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//$command = "mysqldump --opt -h $dbhost -u $dbuser -p $dbpass $dbname | gzip > $backupFile";
$command="mysqldump -h localhost -u root -p123456 guestbook > guestbook2-29.sql";
system($command);
echo "success";
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mysqldump -hhostname -uusername -ppassword databasename specific_table1 specific_table2 > backupfile.sql
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mysqldump -hhostname -uusername -ppassword –databases databasename1 databasename2 databasename3 > multibackupfile.sql
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