PHP Regular Expressions (RegEx) Tester

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PHP Regular Expression (RegEx) Tester

A quick tester for PHP regular expressions. Fill in the appropriate fields below to test regular expressions using the PHP RegExp engine.

Enter the "needle" (regex expression to match):

Enter the replacement string:
Enter the "haystack" (string to search):

Ignore case (make the regex match case-insensitive)
Global matching (match all, not just the first one)
Multi-line matching (a match can span lines)
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