Turn the unit PhpStorm installation path, find ∖ JetBrains ∖ PhpStorm 1.0.2 ∖ lib following branding.jar the file extension will be changed to jar rar, use winrar software to open, the idea folder, the file under the PhpStormApplicationInfo.xml extract and edit, find the following piece of code

The date = "20100914" this date to today's date. Note: This date is the date of installation PhpStorm software, the software will be calculated from this date, you can use the 45-day trial version. So as long as this date to the date of the day can use 45 days. Modified and saved, and re-compressed to branding.rar file name and then change the suffix branding.rar jar
Another step to do what, is to open the C: ∖ Users ∖ EricDu this path (this path is the drive letter to install the operating system, Users folder, system users currently logged on user name folder), in which the following, there is a . WebIde10 folder to which config ∖ eval ∖ under PhpStorm1.evaluation.key delete this file, and then re-run PhpStorm software on it. Re-run, will be logged as well as just installed, select the 45-day trial on it. (after I practice, the above method is effective and feasible)