Preg_match_all（）：未知的修饰符'w'

Question

I'm doing parsing some data from HTML codes using preg_match_all() function. in order to make it easier, I use regex tool to do it. so, my pattern is like:

<td class="(weekday|weekend) reservation (primary|alternate) fixwidth calday fixwidth " >(.*?)</td>

when I use it in regex tool I got the result. but when I put into preg_match_all() function, I did not get the result. I've tried running it on online PHP function tester (functions-online.com/preg_match_all.html), the pattern give null result with the message unknown modifier 'w'.

sorry.., this is how I call use preg_match_all function:

preg_match_all('|<td class="(weekday|weekend) reservation (primary|alternate) fixwidth calday fixwidth " >(.*?)</td>|', $v, $matches3, PREG_PATTERN_ORDER);

what makes it has different result? and how to get result using preg_match_all() with that pattern?

I hope somebody help me. Thanks before.

Answer 1

preg_match_all('/<td class="(weekday|weekend) reservation (primary|alternate) fixwidth calday fixwidth " >(.*?)<\/td>/', $stringToSearch, $results)

First, you have to use delimiters, eg. / to wrap regexp.

Second, if you use / as delimiter, you have to escape every occurence of it in provided regexp.