php preg_replace: replace every occurrence of element (don't group)

Question

I use this code:

preg_replace('/[^A-ÿ\d _]+/', 'NO' , $mystring]

To find and replace everything that is not alphanumerical, or a space or an underscore, with ***

Only problem is that, if my input is:

tes<<t

it outputs:

tesNOt

and I would like:

tesNONOt

I would like it replacing EVERY occurrence of the 'wrong' character.

Thanks for your help!

mickmackusa · Accepted Answer · 2017-06-17 02:24:55Z

1

Your pattern is matching "one or more".

You want to match each one.

$mystring='tes<<t';
echo preg_replace('/[^A-ÿ\d _]/', 'NO' , $mystring);
// output: tesNONOt

answered Jun 17, 2017 at 2:24

mickmackusa♦

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1 Comment

Thanks! Nice and smooth!