[wp-trac] [WordPress Trac] #43170: Replace all usages of basename() with wp_basename() in order to support multibyte filenames

[WordPress Trac]

#43170: Replace all usages of basename() with wp_basename() in order to support
multibyte filenames
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 Reporter:  Viper007Bond  |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  4.9.2
 Severity:  normal        |   Keywords:
  Focuses:                |
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 We still use `basename()` in a lot of places even though it isn't
 multibyte compatible out of the box. See http://php.net/basename and
 https://bugs.php.net/bug.php?id=62119.

 Example filename where it can fail: `麻美.jpg`

 We should replace all uses of `basename()` with our own `wp_basename()`.
 This will probably need a lot of testing, so probably best to avoid one
 big patch and instead change calls in small chunks.

 Related: #43138

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Ticket URL: <https://core.trac.wordpress.org/ticket/43170>
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