Regex str_replace

Question

Would it be possible to incorporate a str_replace method with a regular expression, designed to catch url strings in a simple html < textfield > input type?

I'm considering something simple like a tip for the user to set it up as follows:

This is some text and click this link here.

Obviously the word "here" is a href to the url before it (or after it, if that makes a difference). The text input is drawn from a MySQL db.

I believe the start of my solution is something along the lines of:

$regex = '';
$pg = $row['pg'];
$pg = str_replace('{regex goes here}', $pg);

But I know things are missing. And then I would just output the $pg paragraph.

score 51 · Accepted Answer · answered Nov 23 '12 at 11:39

51

Check out preg_replace here, this is what you are lookin for.

// From the documentation.
preg_replace($regularExpression, $replacement, $subject);

answered Nov 23 '12 at 11:39

Wesley van Opdorp

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It is indeed, but I am unsure of how to replace my entire string with just the word in the 2nd part of the string, enclosed in an -tag. I don't see how I replace a dynamic string with anything other than a static string. And I need the replacement to also be dynamic. – Mikkel Winther Nov 24 '12 at 09:43
lol you have no clue how many times I've searched this in the 6 years I've been a php developer, it's sad... – pythonian29033 Jan 13 '17 at 13:34

Asad Saeeduddin · Answer 2 · 2012-11-23T12:01:16.103

12

What you're looking for is preg_replace:

$pg = preg_replace('{regex goes here}', '{replacement goes here}', $pg);

edited Nov 23 '12 at 12:01

answered Nov 23 '12 at 11:39

Asad Saeeduddin

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Regex str_replace

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