regular expression ?P code example
Example 1: regular expression
One of my favorite regex testers:
https://regex101.com/Example 2: regular expression
|\b0*([a-zA-Z1-9][a-zA-Z0-9]*|0)\b$One of my favorite regex testers:
https://regex101.com/|\b0*([a-zA-Z1-9][a-zA-Z0-9]*|0)\b$