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para · Dec 31st, 2005, 5:10 PM

I'm trying to replace certain occurances of a substring within certain substrings of a string.
For example, if I have the string:

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"blah1<br>blah2 blah3 <pre>asdf<br>123<br></pre> blah4 blah5<br>blah6"

I would like to be able to use a preg_replace() call to change this to:

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"blah1<br>blah2 blah3 <pre>asdf123</pre> blah4 blah5<br>blah6"

Where, in this example, <br>'s are removed, but only within <pre> blocks. Is this possible?

I'm not so great a PHP, and worse at regex; I came up with something like..

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$str = preg_replace("/<pre>(.*)<br><\/pre>/", "<pre>$1</pre>", $str);

But it doesn't exactly work correctly. I'm sure this is far from what I want to

Might anyone be regex gurus?

Dec 31st, 2005, 5:10 PM	#1
para Programmer Join Date: Dec 2005 Posts: 65 Rep Power: 3	regex (preg_replace) parsing I'm trying to replace certain occurances of a substring within certain substrings of a string. For example, if I have the string: (Toggle Plain Text) "blah1<br>blah2 blah3 <pre>asdf<br>123<br></pre> blah4 blah5<br>blah6" "blah1<br>blah2 blah3 <pre>asdf<br>123<br></pre> blah4 blah5<br>blah6" I would like to be able to use a preg_replace() call to change this to: (Toggle Plain Text) "blah1<br>blah2 blah3 <pre>asdf123</pre> blah4 blah5<br>blah6" "blah1<br>blah2 blah3 <pre>asdf123</pre> blah4 blah5<br>blah6" Where, in this example, <br>'s are removed, but only within <pre> blocks. Is this possible? I'm not so great a PHP, and worse at regex; I came up with something like.. (Toggle Plain Text) $str = preg_replace("/<pre>(.)<br><\/pre>/", "<pre>$1</pre>", $str); $str = preg_replace("/<pre>(.)<br><\/pre>/", "<pre>$1</pre>", $str); But it doesn't exactly work correctly. I'm sure this is far from what I want to Might anyone be regex gurus?