Image Commands

catgurl_ashley

Does anyone know any commands dealing with images

I need one that will check image file size and return true of false, and I need another that will check image size(as in pixels) and return true or false....

Im hoping there are sum included in PHP....

barand

Check out [man]getimagesize[/man]

Mordecai

Originally posted by catgurl_ashley
...and return true or false...

If it's used to retrieve a value such as pixel width or pixel height, it can't be boolean. You can use filesize() to get the size of a file, and getimagesize() or imagesx() and imagesy() for width and height. Getimagesize() will also return file type, so that might be of more use to you. However, none are boolean (true/false).

batman

Are you wanting something like this:

$w = '200';
$h = '200';
$image = 'path/to/image.gif';

$size = getimagesize($image);
$width = $size[0];
$height = $size[1];

if(($w >= $width) && ($h >= $height))
{
echo "That image is a good size!";
}
else
{
echo "That image's size is not allowed.";
}

Is that what you want? Sorry, but your post is kinda confusing.

Mordecai - What is your avatar of? I've seen it around but can't remember.

catgurl_ashley

yes guys this will work great 😃

Im kind of a newbie here....dont know everything there is to know yet.... im using a teachyourself book and im into databases now....getting pretty good at this now 😉

but what do those && sings mean???

if(($w >= $width) && ($h >= $height))

used in this line.....

batman

&& = the word and. So for instance in your code:

if(($w >= $width) && ($h >= $height))

That means that if the $w is greater than or equal to $width AND $h is greater than or equal to $height, then do something. Else do something else.

Just to let you know, incase you come across them, || means OR.

Mordecai

Originally posted by batman
Mordecai - What is your avatar of? I've seen it around but can't remember.

Che Guevara.

Mark

Originally posted by catgurl_ashley
yes guys this will work great 😃

Im kind of a newbie here....dont know everything there is to know yet.... im using a teachyourself book and im into databases now....getting pretty good at this now 😉

but what do those && sings mean???
if(($w >= $width) && ($h >= $height)) 
used in this line..... [/B]

&& = and
|| = or

most people like to use the words instead of the symbols, but i like the symbols, i guess i'm difficult..:rolleyes:

hearn

Originally posted by Mark
&& = and
|| = or

most people like to use the words instead of the symbols, but i like the symbols, i guess i'm difficult..:rolleyes:

Most likely a C++ or Linux Guru like myself, otherwise.... just difficult as you said...lol.

I guess I can add one too:
!= Not Equal To

catgurl_ashley

aaah i c.....

i knew what & and | meant, just didnt know you had to use them twice in those cases :p thanks guys 🙂

HalfaBee

FYI.

& means bitwise 'and'
and
&& means boolean 'and'

1 & 6 = 0
1 && 6 = 1
3 & 6 =2
3 && 6 = 1

0 && 1 = 0

FALSE = 0
TRUE=1 or any number not 0

HalfaBee

catgurl_ashley

thanks for that info....
makes more since now :p