In this part:
Changing PhpStorm properties
You can make PhpStorm work faster by editing the default Java Virtual Machine (JVM) settings. These operations require certain understanding of the JVM functionality and may cause unexpected problems. Therefore it is strongly recommended that you address the JetBrains Support whereupon you will be provided with detailed instructions regarding which settings you need to update and what values should be assigned to them.
See also Reporting Issues and Sharing Your Feedback.
PhpStorm makes it possible to change the
*.vmoptions and the
idea.properties files without editing them in the PhpStorm installation folder.
Managing the *.vmoptions file
To change the JVM options, choose on the main menu. PhpStorm creates a file
.vmoptions and opens it in the editor. Update the file as required. For example, to increase PhpStorm heap size, modify the
The name of the generated
.vmoptions file depends on your operating system:
Managing the idea.properties file
Example: Changing the case of unicode literals
PhpStorm allows defining whether non-ascii characters should use literals like
This behavior is controlled by the
idea.native2ascii.lowercase system property. By default, upper-case characters are used.
To use lower-case characters, open the
idea.properties file in the editor and add the following line:
Specifying custom JDK, properties, or vmoptions files across platforms
A custom JDK, as well as
*.vmoptions files are specified across platforms in a unified way.
All launchers look at the following environment variables: