idn_to_ascii(): INTL_IDNA_VARIANT_2003 is deprecated
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Description
I'm getting this bizarre error in some cases under PHP 7.2. Apparently the idn_to_ascii function deprecated the INTL_IDNA_VARIANT_2003 variant in PHP 7.2, and you're supposed to use INTL_IDNA_VARIANT_UTS46 instead now. However, PHP seems to be still using INTL_IDNA_VARIANT_2003 as the default if none is specified. This ends up causing an exception.
I think this is wrong behavior of PHP, but it would be easier to fix in this library calling the idn_to_ascii function. I've patched my running instance to call idn_to_ascii($string,0,INTL_IDNA_VARIANT_UTS46) already.
Has anyone else encountered this issue?
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Research direction
Locate the library's call to idn_to_ascii and inspect how its arguments are passed under PHP 7.2. Compare the current behavior with the reported INTL_IDNA_VARIANT_UTS46 usage; done means IDN conversion no longer triggers the deprecated-variant exception in the affected cases.
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Assessment
- Tech stack
- php
- Domain
- backend
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100