Manojkumar questions

• How to downgrade PHP version from 5.3 to 5.2 in Ubuntu 12.04?
• php function array_keys equivalent in jquery [duplicate]
• why is the `tcgetattr` error seen when ssh is used for dumping the backup file on another server?
• How to clear the ibdata1 file and how it may affect the performance?
• Find the number of lines in a div

Manojkumar answers