Richard Lynch wrote:
> On Sat, February 3, 2007 10:55 am, Chilling Lounge Admin wrote:
>> I need help with matching a variable. The variable would be e.g. 0-15
>> , 16-30 etc. and when the variable is equal to a certain range, it
>> would echo an image.
>>
>> Does anyone know what function I should use? preg_match?
>>
>> The code would be something like
>>
>> if(preg_match("[16-30]",$variable))
>> {
>> echo "image";
>> }
>>
>> but the above code doesn't work. How do I fix it?
look at pron for half an hour and all of a sudden your
code will rewrite itself.
or alternatively learn to write regular expressions - for
which me recommend RTFM - I assume they still advise actually reading
at school?
>
> Deja Vu!
>
> <?php
> if (!preg_match('/^[0-9]+$/', $input)){
> die("invalid input\n");
> }
> $input = (int) $input;
> switch (true){
> case $input < 0: die("invalid input\n"); break;
> case $input <= 15: echo "image 1 to 15\n"; break;
> case $input <= 30: echo "image 16 to 30\n"; break;
> default: die("invalid input\n"); break;
> }
> ?>
>
> If this is homework, you'd better go hire a tutor NOW, because it
> ain't gonna get any easier than this...
especially when your doing it for him ;-)
>
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