Error: The name can only contain underscores and alphanumeric characters. It must begin with a letter and be unique, and must not include spaces, end with an underscore, or contain two consecutive
Resolving the "The value 'xyzportal' can only contain alphanumeric characters. A hyphen may be used in the middle of the subdomain; but, not at the beginning or end" Error – SmartVault
java - Given a string s, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases - Stack Overflow
The path field must contain only alphanumeric characters in ojs 3.1.2-1 - Software Support - PKP Community Forum