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I've just updated my forum software to IPBv4 and it's inserted a paragraph line in the signatures field, so they are really spaced out, I want to search and remove this line from the field. In some instances, there is more than one occurance in the field value.

 

 

This is the string I want to remove:

<p style="text-align:center;"> </p>

An example of one members signature in the database:

<p style="text-align:center;"><img src="http://i1382.photobucket.com/albums/ah259/maphilli/Axial%20Yeti/Logos/MS%20Banner_zpsfrtm0dpx.jpg" alt="MS%20Banner_zpsfrtm0dpx.jpg"></p>
<p style="text-align:center;"> </p>
<p style="text-align:center;"><a href="<___base_url___>/topic/199518-zombis-axial-yeti/">My Axial Yeti Build Thread</a></p>
<p style="text-align:center;"> </p>
<p style="text-align:center;"><a href="<___base_url___>/topic/202762-zombi/">My Sales Feedback Page</a></p>
<p style="text-align:center;"> </p>
<p style="text-align:center;"><a href="<___base_url___>/forum/167-gowtt/">GOWTT Trailing Group Forum - Derbyshire Peak District</a></p>
<p style="text-align:center;"> </p>
<p style="text-align:center;"><a href="https://www.facebook.com/pages/Loaded-Ox/437880833003825" rel="external nofollow">Loaded Ox Facebook Page</a></p>

I want it to remove the line mentioned, so it looks like this:

<p style="text-align:center;"><img src="http://i1382.photobucket.com/albums/ah259/maphilli/Axial%20Yeti/Logos/MS%20Banner_zpsfrtm0dpx.jpg" alt="MS%20Banner_zpsfrtm0dpx.jpg"></p>
<p style="text-align:center;"><a href="<___base_url___>/topic/199518-zombis-axial-yeti/">My Axial Yeti Build Thread</a></p>
<p style="text-align:center;"><a href="<___base_url___>/topic/202762-zombi/">My Sales Feedback Page</a></p>
<p style="text-align:center;"><a href="<___base_url___>/forum/167-gowtt/">GOWTT Trailing Group Forum - Derbyshire Peak District</a></p>
<p style="text-align:center;"><a href="https://www.facebook.com/pages/Loaded-Ox/437880833003825" rel="external nofollow">Loaded Ox Facebook Page</a></p>

The table is `ipb_core_members`, column `signature`
 

What SQL query can I run? Thanks in advance.

Edited by Mutley
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https://forums.phpfreaks.com/topic/298336-find-and-replace-string-in-field/
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Something like this

 

UPDATE `ipb_core_members` SET `signature` = replace(signature, "<p style=\"text-align:center;\"> </p>", '')

 

Thanks a lot QuickOldCar

 

I did a test on 1 member and it ran successfully but effected no rows, I'm guessing that it's not matching with that string correctly but I am not sure why? The backslash to make it parse won't cause any issues would it?

I just use PHPMyAdmin.

 

The backslashes don't seem to cause any problems; at least they worked when I tested the query through PHPMyAdmin. Note that the query could also be written as

UPDATE `ipb_core_members` SET `signature` = replace(signature, '<p style="text-align:center;"> </p>', '')

Are the empty paragraph tags written exactly like

<p style="text-align:center;"> </p>

If there is more than one space between the open and close tag, for example, the query won't replace anything.

The backslashes don't seem to cause any problems; at least they worked when I tested the query through PHPMyAdmin. Note that the query could also be written as

UPDATE `ipb_core_members` SET `signature` = replace(signature, '<p style="text-align:center;"> </p>', '')

Are the empty paragraph tags written exactly like

<p style="text-align:center;"> </p>

If there is more than one space between the open and close tag, for example, the query won't replace anything.

 

I just can't get it to work, yes the string is exactly that.

 

Even if I just test it on the example in my first post, it doesn't find this string. I really can't understand why. If I do a search for this string, then it finds the fields no problem, it just won't initiate this replace query.

Did a test myself in phpmyadmin and seemed to work fine.

 

1 row(s) affected. ( Query took 0.0009 sec )

UPDATE `ipb_core_members` SET `signature` = replace( signature, "<p style=\"text-align:center;\"> </p>", '' )

 

New data:

<p style="text-align:center;"><img src="http://i1382.photobucket.com/albums/ah259/maphilli/Axial%20Yeti/Logos/MS%20Banner_zpsfrtm0dpx.jpg" alt="MS%20Banner_zpsfrtm0dpx.jpg"></p>

<p style="text-align:center;"><a href="<___base_url___>/topic/199518-zombis-axial-yeti/">My Axial Yeti Build Thread</a></p>

<p style="text-align:center;"><a href="<___base_url___>/topic/202762-zombi/">My Sales Feedback Page</a></p>

<p style="text-align:center;"><a href="<___base_url___>/forum/167-gowtt/">GOWTT Trailing Group Forum - Derbyshire Peak District</a></p>

<p style="text-align:center;"><a href="https://www.facebook.com/pages/Loaded-Ox/437880833003825" rel="external nofollow">Loaded Ox Facebook Page</a></p>

Thanks a lot for your help so far, I just don't get why it won't work, it doesn't bring any errors but it doesn't change any rows. Here is a screenshot of the query executing and the signature field...

 

 

CAh7om0.jpg

 

 

Signature field...

 

3v996Bg.jpg

Edited by Mutley

Does this version work for you - enclosing the search text in single quotes and no escape of the double quotes?

UPDATE `testsig` 
SET `signature` = replace( signature, '<p style="text-align:center;"> </p>', '' ) ;
mysql> UPDATE `testsig`
    -> SET `signature` = replace( signature, '<p style="text-align:center;"> </p>', '' ) ;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

Same problem, this is really leaving me confused,

 

It executes fine but effects no rows. Searching for the string in fields with %LIKE%, finds all the fields with no issues too. So it can see the fields using this string.

 

What could it be? :( I really appreciate your help so far guys!

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