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Multiple <br />’s?

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Nov 15.2004

This is strange… I have searched many places on the net and on these forums and I can’t find an answer to what I thought would be a simple question. Maybe I’m not searching for the right thing… I don’t know. Anyway, how can I contract many <br />’s into one? Even if they are on multiple lines? It can’t be a set number. It has to be any number of <br />’s. So like if I had 1000 <br />’s it would contract them into one <br />. Even if those <br />’s were on multiple lines. Thanks for the help. ?

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PHP

5 Comments(s) ↴

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@rpanningNov 15.2004 — I think REGEX would do the trick however I'm not a REGEX pro. It should start off with something like this.
[code=php]$string = preg_replace("/(\<br \/\>){2,}/ig", '<br />', $string);[/code]
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@JickauthorNov 15.2004 — Well I gave that a try and it didn't work... ?
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@JonaNov 15.2004 — [font=trebuchet ms]Try the following. (I haven't tested it, but it should work with both XHTML and HTML.)[/font]

[font=courier new]

$str = preg_replace('/(<br( /)?>)+/i', '<br$2>', $str);

[/font]

[font=trebuchet ms][i]Edit: I couldn't get it to format correctly in PHP [b]or[/b] CODE tags.[/i][/font]
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@JickauthorNov 15.2004 — Thanks Jona! That worked great! ?

One last question. Do you know how I could set it up so that it is applied to everything except any instances of [c][/c] in the string? So like if I had this:

------------------------------------
hello<br />

<br />

<br />

[c]<?php<br />

<br />

<br />

$hello = "cool";<br />

<br />

?>[/c]<br />

<br />

some more text that is not code.
------------------------------------



So the output would be:

------------------------------------
hello<br />

[c]<?php<br />

<br />

<br />

$hello = "cool";<br />

<br />

?>[/c]<br />

some more text that is not code.
------------------------------------



So basically it is contracting the br's outside the [c][/c] tags but not inside. Can't you do that with a regex? There could be more then one instance of the [c][/c] tags in the string so it would need to like ignore anything between [c] and [/c] and time it finds it in the string. Thanks for the help. ?
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@JonaNov 16.2004 — [font=trebuchet ms]I'd suggest a line-by-line loop. Something like the following...[/font]

<i>
</i>&lt;?php
$data = $row['post']; # for example, from a MySQL database query
$data = explode("n", $data);
$inStr = false;
for($j=0; $j&lt;count($data); $j++){
if(stristr($data[$j], "[c]")){
$inStr = true;
}
if(stristr($data[$j], "[/c]")){
$inStr = false;
}
if(!$inStr){
$data[$j] = preg_replace('/(&lt;br( /)?&gt;)+/i', '&lt;br$2&gt;', $data[$j]);
}
$inStr = false;
}
$data = implode("n", $data);
?&gt;


[font=trebuchet ms]The forum automatically puts a space after the "?>" in the Regular Expression - use the one I gave you in my previous post to be sure it works.[/font]
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