Text substitution - help needed

[lxndr]

I'm trying to write a function that will read in a text document containing various bespoke tags which I then expand into the appropriate HTML.  I've done most of them but was wondering if someone could help me with this particular one .. I'm guessing I should be using preg_replace but can't seem to get it to work.

 

I have a variable called $rec_id which is an integer. The following is the conversion I want to perform:

 

in text file:      <image 1/jpg>

should be converted to :  <img src = "story_images/1347-1.jpg" style="float:left;padding:5px;">

 

where the conversion string is all fixed as above apart from the bit in colour and in the above example $rec_id was 1347.  Here are another couple of examples to illustrate the above:

 

$rec_id:  1281

tag in text file:  <image 2/gif>

tag replaced with:  <img src = "story_images/1281-2.gif" style="float:left;padding:5px;">

 

 

$rec_id:  763

tag in text file:  <image 4/jpg>

tag replaced with:  <img src = "story_images/763-4.jpg" style="float:left;padding:5px;">

 

 

Any help much appreciated.

 

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