Updates for PHP 7.2#336

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jlbooker wants to merge 3 commits intoAppStateESS:masterfrom

jlbooker:php-7.2

Commits on May 31, 2021

Remove check for 'magic_quotes' config in Setup. The 'get_magic_quotes_*' methods are deprecated in php 7.4 and removed in php 8.
jlbooker
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Commits on Jan 16, 2022

Merge branch 'remove_magic_quotes_setup_check'
jlbooker
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Commits on Dec 19, 2022

Update Dockerfile to use php 7.2. Minor fixes for changes to count().
jlbooker
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