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PHP多个连续空格回车替换为一个，怎么写更简短

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Release： 2016-06-13 11:56:06

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PHP多个连续空格回车替换为一个，如何写更简短？
php多个连续空格（）或者分段
替换为一个。如何改写下面这个更加简短？

<br /><br />function re($content)<br />{<br />    /* return preg_replace('/(<br\s*\/?>){3,}|( ){3,}/i'),'\\1',$content); */ //错误！<br />    /* return preg_replace('/(<br\s*\/?>| ){3,}/i'),'\\1',$content); */ //错误！<br />    return preg_replace(array('/(<br\s*\/?>){3,}/i','/( ){3,}/i'),'\\1',$content);<br />}<br /><br /><br />//test<br />$content = '1111    <br><br><br><br />@@@<br/><br><br/><br>aaaaM<br><br/>';<br />echo re($content);<br />exit();<br />

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------解决方案--------------------
已经很短了，还要改什么呢。

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source：php.cn

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