regex - Backslashes in regexp pattern for PHP -

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i'm trying perform regex operation in php code (preg_replace). i'm working with:

|^http(s)?://[a-z0-9-]+(.[a-z0-9-]+)*(:[0-9]+)?(/.*)?$|i

that matches urls http://google.com, etc... i'm guessing if url want match one?

http:\/\/asd.domain.com\/path\/of\/url\/something.else

i've tried 2x backslashes , 4x backslashes , doesn't seem work.

any advice?

thanks in advance.

well, if want match string, add backslashes:

^http(s)?:\\?/\\?/[a-z0-9-]+(.[a-z0-9-]+)*(:[0-9]+)?(\\?/.*)?$

i used ? quantifier still matches urls match before that. since \ escaping character, need 2 of those, first escape escaping properties of second \.

see demo (i escaped forward slashes there because of how regex tester works -- delimiters slashes).


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