Ref #77388 - disallow passing BAD_ESCAPE_IS_LITERAL, esp by default #4430
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this option is considered dangerous and unwanted
nikic
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Jul 18, 2019
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this option is considered dangerous and unwanted by the author of pcre:
While this is a B/C change - it is more likely to expose (existing) problems that can quickly be fixed by fixing the regexp. There were no objections against removing it on php-internals
this PR is a copy of #4429 - but using a proper feature-branch targeting master instead of PHP-7.4