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+--- Thread: Additional rule for Validation (/showthread.php?tid=72222)
Additional rule for Validation - HardyW - 11-23-2018
CodeIgniter has a few roles related to restrict the input to alphanumeric characters. But it does not have a standard rule to limit the input for identifiers. You can of course use regular expressions (like [_a-zA-Z][_a-zA-Z0-9]*) but a native rule would be convenient and has a broad usage, I believe.
Regards,
Hardy
RE: Additional rule for Validation - ciadmin - 03-06-2019
Doesn't the "alpha_dash" validation rule do this already?
See https://codeigniter4.github.io/CodeIgniter4/libraries/validation.html#available-rules
RE: Additional rule for Validation - HardyW - 03-06-2019
(03-06-2019, 11:49 AM)ciadmin Wrote: Doesn't the "alpha_dash" validation rule do this already?
See https://codeigniter4.github.io/CodeIgniter4/libraries/validation.html#available-rules
No, not according to the documentation and not according to the implementation: an identifier may not begin with a dash or a number!