convert javascript regex to php

Question

I have the following regular expression:

RegExp("http://www.amazon.com/([\\w-]+/)?(dp|gp/product)/(\\w+/)?(\\w{10})");

Written in javascript.

How can I get it to work with PHP's preg_match_all? What are the differences as far as regular expressions go?

Tatu Ulmanen · Accepted Answer · 2010-01-14 08:05:48Z

3

This should work:

preg_match_all('#http://www.amazon.com/([\w-]+/)?(dp|gp/product)/(\w+/)?(\w{10})#', $data, $matches);

When you use the JavaScript RegExp constructor with a string, all backslashes have to be escaped with another backslash. This is not the case with PHP.

And normally you would use / as the delimiter for the regex, but as in this case you have a lot of / in your search string it is wiser to use some other delimiter so you don't have to escape every slash with a backslash. In this case I used the pound sign as a delimiter.

answered Jan 14, 2010 at 8:05

Tatu Ulmanen

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1 Comment

Akash Over a year ago

Commenting on an old answer, but do you know of any automated converters for Javascript Regex syntax to PHP regex syntax?

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