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PHP variables, if necessary, can be validated with the following Regular Expression:
[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*
But what about the namespaces?
I have a certain string, coming from a form, which will serve as the name of a directory which will contain classes with namespaces.
Take as an example that Application fully functional which I use as playground testing, whose part of the directory structure, from the root directory, is:
|-\application
| \-\application\dovahkiin
| |-\application\dovahkiin\application.php
The expression to be validated in this case would be the word dovahkiin.
And how I want to keep the process of self-loading simple, that is, just replacing the T_NS_SEPARATOR () by the DIRECTORY_SEPARATOR of the operating system and finally concatenating the file extension (thus), I need this string to be valid as part of a namespace.
I already know that non-alpha-numeric characters, such as dots and spaces, are invalid, but I’m not sure if the same Regular Expression used for variables would be valid for namespaces as well.
I could not understand your question, could provide data of
namespacesthat you consider valid?[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff].\x7f, by the table acsii is thedelete, Still, you’re going up to the\xffthat is, allowing these characters :ƒ,«,╣. If you’re talking about validating the variable’s scrotum and not its content, it would be this?^(\$?[a-zA-Z_]\w*)$– Guilherme Lautert
The main reason for wanting to validate a namespace is precisely because it may be unknown. When me define my namespaces, I strictly use letters, but for validation, it may be that other characters are also valid. When it came to that Regular Expression, I didn’t create it. I just copied it of the manual
– Bruno Augusto