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PHP - Remove single instances


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  #1  
Old September 13th, 2012, 05:19 PM
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PHP - Remove single instances
Hello. I'm sure this is straight-forward but.. I want to remove single instances of the @ symbol, but if there are two consecutive such characters I want to reduce this to one.

So fun@ction should become function and someone@@mail.com should drop to someone@mail.com. Current code:

PHP Code:
 $line = preg_replace('/\@{2,}/', '@', $line); 


Andy.
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  #2  
Old September 13th, 2012, 05:26 PM
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And... you don't know if that's the best way to do it?

If there's only two instances then just str_replace() it. Otherwise, if you want to also replace more than two instances, you've got the right idea.
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Old September 13th, 2012, 05:36 PM
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My current code replaces two (or more) instances with one, but it doesn't remove the single instances, so I'm still left with fun@ction.
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Old September 13th, 2012, 05:46 PM
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Well, this works

$line = preg_replace('/\@{2,}/', '', $line);

to remove two or more instances and leave single instances. So I can use fun@@ction and someone@mail.com - but I'd rather it were the other way round..? Andy.
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Old September 13th, 2012, 06:11 PM
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Never mind:

Code:
$line = preg_replace('/((\@)(\@)?)/', '$3', $line);
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