[SOLVED] function to grab number out of a string

[dadamssg]

I'm attaching images to events. And im going to name the events the timestamp that they end at and then attach the creators login name. So an example would be

 

324559823759admin.png

 

I know that "timestamp" probably isn't legit but...i need a function that will grab all those beginning numbers up until it hits a letter...so the function would return "324559823759" in this case if "324559823759admin.png" was inputted. I have no clue how to do this...does anybody???

[nrg_alpha]

There are numerous ways to skin this cat I'd wager.. two possible solutions could be:

 

Example 1:

function grabNumbers($str){
    preg_match('#^\d+#', $str, $match);
    return $match[0];
}

$file = '324559823759admin.png';
echo grabNumbers($file); // Output: 324559823759

 

Exmaple 2 (using a possible non-regex solution):

function grabNumbers($str){
    list($number,$string) = sscanf($str, "%d%s"); // if using a 64-bit system simply return $number - otherwise,
    return str_replace($string, '', $str); // we remove string from filename instead 
}

$file = '324559823759admin.png';
echo grabNumbers($file); // Output: 324559823759

[dadamssg]

ok...what about if i had an image with this name

 

1248840000Admin614.png (notice the numbers after the Admin)

 

would both of those just return the front number? cause thats what i need

 

if so...you're awesome

 

 

[dadamssg]

i just tried both of these with no luck...

 

function grabNumbers($str){
    preg_match('#^\d+#', $str, $match);
    return $match[0];
}

$file = '324559823759admin235.png';
echo grabNumbers($file); // Output: 324559823759

function grabNumberss($str){
    list($number,$string) = sscanf($str, "%d%s"); // if using a 64-bit system simply return $number - otherwise,
    return str_replace($string, '', $str); // we remove string from filename instead 
}

$file = '324559823759admin3465.png';
echo grabNumberss($file); // Output: 324559823759

[dadamssg]

wait....just kidding...uploading the file to the freaking wrong directory...works perfect, thank you!

[nrg_alpha]

All's good.