[MacPorts] #59396: unable to install php56-intl after upgrade to mac os 10.14

[MacPorts]

#59396: unable to install php56-intl after upgrade to mac os 10.14
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  Reporter:  wadjei      |      Owner:  ryandesign
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.6.1
Resolution:              |   Keywords:
      Port:  php56-intl  |
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Comment (by ryandesign):

 Is only php56-intl affected or are the other phpXX-intl versions also
 affected?

 Maybe old versions of PHP are not compatible with the new ICU. If so,
 maybe we can find out how they fixed newer versions and backport the fix.

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Ticket URL: <https://trac.macports.org/ticket/59396#comment:2>
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