ereg_replace

[arfa]

A simple one? -- for those that know how.

 

I am trying to strip everything from a string that is NOT a-z, 0-9

 

I started with: ereg_replace("[^a-z0-9]",'',$string);

Tried various other permutations. Oh dear...

 

What should I be doing?

 

thanks - arfa

[nrg_alpha]

I would recommend not using ereg, as of PHP6, it will not be supported in the core by default (I think it will only be an extension). You should use preg instead. Here is a good starter thread for that. You can also read about PCRE regex here.

 

$str = 'testing 123...';
$str = preg_replace('#[^a-z0-9]#', '', $str);
echo $str;

 

Ouput:

testing123

[arfa]

thanks for the heads up on php6

Generally there seems to be a very slow uptake of php5

 

And, thanks for the str = str

works just fine.

[nrg_alpha]

Generally there seems to be a very slow uptake of php5

 

Well, PHP 5.3 is now in alpha.. so once that final stable release launches, I assume 6 is next.

I personally am not concerned with how long it takes, so long as each version is developed properly with the least amount of bugs possible while adding robust features.

 

So yes, it may take a while till version 6 finally arrives.. but it's best to future proof your code now.. that way, when version 6 does arrive, your php scripts will not 'mysteriously' break on you.

 

Cheers,

 

NRG