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<?php
$img_path = './';
$img_type = '.gif';
$str = '(ÄÇÌìÏÂ×ÅÓê)ssssssssss[:13]zzzzzzzz[:5]';


?>

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PHP code:

$img_path = './';
$img_type = '.gif';
$str = '(ÄÇÌìÏÂ×ÅÓê)ssssssssss[:13]zzzzzzzz[:5]';

echo preg_replace('/\[\:([^\]]+)]/','<img src="'.$img_path.'\\1'.$img_type.'"/>',$str);

/*

(ÄÇÌìÏÂ×ÅÓê)ssssssssss<img src="./13.jpg"/>zzzzzzzz<img src="./5.jpg"/>

*/




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