Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
505 views
in Technique[技术] by (71.8m points)

php - regular expression and forward slash

i'm searching for keywords in a string via a regular expression. It works fine for all keywords, exept one which contains a forward slash in it: "time/emit" .

Even using preg_quote($find,'/'), which escapes it, i still get the message:

Unknown modifier 't' in /frontend.functions.php  on line 71

If i print the find pattern, it shows /time\/emit/ . Without preg_quote, it shows /time/emit/ and both return the same error message.

Any bit of knowledge would be useful.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Try to begin and end your regular expression with different sign than /

I personally use `

I've seen people using #

I think most chars are good. You can read more about it here: http://pl.php.net/manual/en/regexp.reference.delimiters.php

Like this:

 preg_match('#time/emit#', $subject);  // instead of /time/emit/

To put it another way: Your $find variable should contain rather #time/emit# than /time/emit/


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...