Php replacing strings in html ouput

Question

I am trying to replace the first string in the code

$confirmation_message = apply_filters("pmpro_confirmation_message",  $confirmation_message, false);
    $confirmation_message = preg_replace('mysite.com', 'mysite.com?true', $str, 1);
    echo $confirmation_message;

But it is giving me a weird error

   Delimiter must not be alphanumeric or backslash line

Here's the original output of $confirmation_message

   <p><font><font class="">Visit your new site here: </font></font><a href="mysite.com/"><font><font class="">mysite.com</font></font></a></p>

  <p><font><font class="">Manage your new site here: </font></font><a href="mysite.com/wp-admin/"><font><font class="">mysite.com/admin</font></font></a></p>

You have wrong regexp in preg_replace. `preg_replace('/mysite.com/', 'mysite.com?true', $str, 1);` — Piotr Olaszewski, Jan 24 '15 at 11:51
possible duplicate of [Delimiter must not be alphanumeric or backslash and preg\_match](http://stackoverflow.com/questions/7660545/delimiter-must-not-be-alphanumeric-or-backslash-and-preg-match) — Fabio Cardoso, Jan 24 '15 at 11:55
This is odd. Your string working fine for me with regexp like `/mysite.com/` — Piotr Olaszewski, Jan 24 '15 at 11:56
Yeah i got the errors actually i didnt replaced $str with my variable ie with $confirmation_message @PiotrOlaszewski — Vaibhav Mav, Jan 24 '15 at 11:58

Viktor · Answer 1 · 2015-01-24T12:15:07.250

1

As @Piotr Olaszewski commented, you need to add the delimiters to the pattern.

$confirmation_message = preg_replace('/mysite\.com/', 'mysite.com?true', $confirmation_message, 1);

Note the escaped dot in the pattern as well.

Had you wanted to replace all occurrences of mysite.com, you could have used str_replace for better performance:

$confirmation_message = str_replace('mysite.com', 'mysite.com?true', $confirmation_message);

edited Jan 24 '15 at 12:15

answered Jan 24 '15 at 11:55

Viktor

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Author want replace only first occurrence of string, not all. str_replace change all found string. – Piotr Olaszewski Jan 24 '15 at 12:00

Php replacing strings in html ouput

1 Answers1