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Deprecated the checkDNS and dnsMessage options #8961

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Merged
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Jan 4, 2018
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Deprecated the checkDNS and dnsMessage options #8961

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12 changes: 12 additions & 0 deletions reference/constraints/Url.rst
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Expand Up @@ -231,6 +231,12 @@ checkDNS

**type**: ``boolean`` **default**: ``false``

.. versionadded:: 4.1
This option was deprecated in Symfony 4.1 and will be removed in Symfony 5.0,
because checking the DNS records is not reliable enough to validate the
existence of the host. Use the :phpfunction:`checkdnsrr` PHP function if you
still want to use this kind of validation.

By default, this constraint just validates the syntax of the given URL. If you
also need to check whether the associated host exists, set the ``checkDNS``
option to ``true``:
Expand Down Expand Up @@ -305,6 +311,12 @@ dnsMessage

**type**: ``string`` **default**: ``The host could not be resolved.``

.. versionadded:: 4.1
This option was deprecated in Symfony 4.1 and will be removed in Symfony 5.0,
because checking the DNS records is not reliable enough to validate the
existence of the host. Use the :phpfunction:`checkdnsrr` PHP function if you
still want to use this kind of validation.

This message is shown when the ``checkDNS`` option is set to ``true`` and the
DNS check failed.

Expand Down