RE: preg_replace strange behaviour, duplicates

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<?php

$string = "The new Intel Core 2 Duo T8300";

 

$name = "Intel Core 2";

$extra = " Duo";

 

 $insert = " Processor Technology";

 echo preg_replace("/({$name}{$extra}?)/", "$1".$insert, $string);

 

 ?>

 

 

Simcha Younger

 

-----Original Message-----

From: Adz07 [mailto:adam@xxxxxxxxxxxxxxx]

Sent: Monday, August 18, 2008 10:17 AM

To: php-general@xxxxxxxxxxxxx

Subject: Re:  preg_replace strange behaviour, duplicates

 

 

Problem is that a negative assertion assumes i know what is going to come

after the match, but i don't. I am a bit stuck now :(

 

 

Adz07 wrote:

> 

> I am trying to nail down a bit of code for changing processor names

> depending on matches.

> Problem i am having is the replacement takes place then it seems to do it

> again replacing the text just replaced as there are similar matches

> afterwards. example (easier)

> 

> $string = "The new Intel Core 2 Duo T8300";

> 

> $patterns = array("/Intel Core 2 Duo/","/Intel Core 2/");

> 

> $replacements = array("Intel Core 2 Duo Processor Technology","Intel Core

> 2 Processor Technology");

> 

> I would expect to get the following:

> 

> The new Intel Core 2 Duo Processor Technology T8300

> 

> but i get 

> 

> The new Intel Core 2 Processor Technology Duo Processor Technology T8300

> 

> I can see why its doing it, reading the string in and making the

> replacement but then reading the string in for the next pattern, but i

> don't want it to do this. How do i stop preg_replace from reading in the

> same part of the string that has been replaced already?

> 

> (it's a bad day! :( )

> 

 

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