preg_match_all, then remove duplicate when loop using php

[richprich]

Although there are many similar questions and answers here and i've tried my best to make it work but no luck. This is my code:

 

$content = "Blah...blah...[image=1],

blah...blah...blah...[image=2],

blah...blah...blah...[image=1], no more...";

 

function get_image($content)

{

$stripper = $content;

preg_match_all("/\[image=(.+?)\]/smi",$stripper, $search);

$total = count($search[0]);

for($i=0; $i < $total; $i++)

{

$image_id = $search[1][$i];

if($image_id > 0)

{

$image = 'This is an image: <img src="images/'.$image_id.'.jpg" />';

}

$stripper = str_replace($search[0][$i], $image, $stripper);

}

return $stripper;

}

 

 

I want to remove the duplicate "[image=1]" and return:

Blah...blah...This is an image: <image>,

blah...blah...blah...This is an image: <image>,

blah...blah...blah..., no more...

 

or

 

Blah...blah...,

blah...blah...blah...This is an image: <image>,

blah...blah...blah...This is an image: <image>, no more...