[wp-trac] [WordPress Trac] #64457: Avoid underscores for hosts in wp_http_validate_url

[WordPress Trac]

#64457: Avoid underscores for hosts in wp_http_validate_url
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 Reporter:  SirLouen     |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  low          |  Milestone:  Awaiting Review
Component:  HTTP API     |    Version:
 Severity:  normal       |   Keywords:  2nd-opinion
  Focuses:  performance  |
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 A little performance improvement in `wp_http_validate_url`, early
 returning in the presence of underscores.

 Theoretically, a hostname check for a TLD with underscores will never
 succeed when calling `gethostbyname` but given how “expensive” in
 performance this function is, maybe early returning for a `$host` in the
 presence of underscores will save that call for certain malformed URLs.

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Ticket URL: <https://core.trac.wordpress.org/ticket/64457>
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