[] Php regular expression to replace the music address and image address

[Online and so on] php regular replacement music address and picture address ask you big man php regular replacement music address and picture address such as music address http://sdsds.com/sdds/def/das.mp3 http://sdse22s.com/s22dds/ [online, etc.] php regular replacement music address and picture address
Ask you to replace the music address and image address with regular expressions in php.

Such as music address http://sdsds.com/sdds/def/das.mp3
Http://sdse22s.com/s22dds/d2ef/da333s.wma
Http: // sdsds. c55om/sdd44s/de33f/d2222s.wav

For example, image address http://gggfefgg.com/da3s/ddderv.jpg
Http://saeggg.com/d3as/dddswe.gif
Http://ggbgg.com/da2s/dd86.png

Now I read a piece of content from the database. how can I match these images with music and replace them with others?

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PHP code

[User: root Time: 09: 37: 50 Path:/home/liangdong/php] $ php preg. php this is the image [User: root Time: 09: 37: 51 Path:/home/liangdong/php] $ cat preg. php