php preg_replace，字符串包含|，[，]符号

Question

I have problem with this "simple" code:

$img_oryg = '<igm class="aligncenter" src="(oryginal img source)" alt="some text | some text">';
$replace_with = '<div class="ivcs_holder"><igm class="aligncenter" src="(oryginal img source)" alt="some text | some text" /></div>';
$content =  preg_replace("#$img_oryg#s", $replace_with , $contetn );
echo $content;

This is ofcourse a sample code, and everything is coded inside a loop, which overlap each image with divs, and also doeas some other stuff. Problem is in | that can be added to alt-tag of image. If it is present, then code behave strangely and result is not correct.

Anybody does know how to deal with strings like that?

Answer 1

it should be ok as long as you run preg_quote on your regex pattern. the | character has a special meaning in regex, so this is why it would cause problems.