<div>
Thanks Dan. I think I love you.
</div>


<div>
Glad I could help!<br />
<br />
But I'm afraid I don't feel the same way... :)
</div>


Glad I could help!

But I'm afraid I don't feel the same way... :)

<div>
That's ok. I understand. We can still be friends. :)
</div>


That's ok. I understand. We can still be friends. :)

<div>
I've been asked on another forum to <br />
1. stop using {0,1} and use the optional operator (?), the reason being that it's easier to read for the &quot;properly&quot; trained regexp specialists.<br />
2. use non capturing groups (?:) when possible, to speed up matches a little (because the &nbsp;regex engine does not need to keep track of groups).<br />
<br />
So, you have below the functionally equivalent regex, but a little more &quot;canonically&quot; written:<br />
<br />

<pre><code id="code-20-39914227-1">'%https?://(?:www\.)?(?:domain1|mydomain3)\.com(?:/\w*(?:\.\w*)*)*%'</code></pre>
HTH,<br />
Dan
</div>


I've been asked on another forum to
1. stop using {0,1} and use the optional operator (?), the reason being that it's easier to read for the "properly" trained regexp specialists.
2. use non capturing groups (?:) when possible, to speed up matches a little (because the  regex engine does not need to keep track of groups).

So, you have below the functionally equivalent regex, but a little more "canonically" written:



'%https?://(?:www\.)?(?:domain1|mydomain3)\.com(?:/\w*(?:\.\w*)*)*%'

HTH,
Dan

<div>
<div class="content wysiwyg-content">
Hello,<br />
<br />
I am sifting through a page of text and want to use preg_match on it to find urls that match a profile and capture them.<br />
<br />
What is the regex I would use to find &quot;http://domain.com/page/name&quot;&nbsp;with:<br />
<br />
&quot;domain&quot; could be &quot;domain1&quot; or &quot;mydomain3&quot;<br />
&quot;page/name&quot; being any string with or without slashes, repeated any number of times<br />
the &quot;http&quot; should also look for &quot;https&quot; <br />
there might be a www or no www<br />
<br />
<br />
Thank you very much!<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
Thank you!
</div>
</div>


Hello,

I am sifting through a page of text and want to use preg_match on it to find urls that match a profile and capture them.

What is the regex I would use to find "http://domain.com/page/name" with:

"domain" could be "domain1" or "mydomain3"
"page/name" being any string with or without slashes, repeated any number of times
the "http" should also look for "https" 
there might be a www or no www


Thank you very much!







Thank you!

REGEX Help for Domain Name + Path

A regular expression ("regex") is a sequence of characters that define a search pattern, mainly for use in pattern matching with strings, or string matching, i.e. "find and replace"-like operations. Regular expression processors are found in several search engines, search and replace dialogs of several word processors and text editors, and in the command lines of text processing utilities, such as sed and AWK. Many programming languages provide regular expression capabilities, some built-in, for example Perl, JavaScript, Ruby, AWK, and Tcl, and others via a standard library, for example .NET languages, Java, Python and C++ (since C++11). Most other languages offer regular expressions via a library.

Regular Expressions

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.