image size

mohamad_1978

my qustion is lets say

$text = " hi can you watch this picture <img src= http://www.mysite.com/images/image.gif border= 0> "

i want code to read this text and if it find <img > code i want it to check the width and height and if the width is more then 400 for example i want it to add this

(width = 400 ) to the img code

i know that i can use getimagesize() to read the size but how i can do it with $text as u see in the example

anyone can help ?

dankstick

Give this a try:
$text = " hi can you watch this picture <img src= http://www.mysite.com/images/image.gif border= 0> ";

preg_match_all('/img src= ([a-z0-9A-Z.\/:]+) /U', $text, $out);
foreach($out[1] as $k => $v){
echo "<p>$v</p>";
}

You'll get off to a good start here, modify the regexp to suit you. I'm just working with your example here.

mohamad_1978

i dont understand the code to be honest with u and also it is not work when i try it
i wana tell u also thay i may have more then one picture in $text

dankstick

Right, more than one picture is fine. Copy this code below exactly as I have it, I assure you it works...

<?
$text = " hi can you watch this picture <img src= http://www.mysite.com/images/image.gif border= 0>
or this one <img src= http://www.mysite.com/imagez/image2.gif border= 0>, oh and this one too
<img src= image3.gif border= 0>";

preg_match_all('/img src= ([a-z0-9A-Z.\/:]+) /U', $text, $out);
foreach($out[1] as $k => $v){
echo "<p>$v</p>";
}

?>

The image tag in the example you provided is roughly coded. There are no quotes around the attribute and a space between the equal sign and attribute. I was saying you would have to edit the regexp to meet your needs if they vary from the example you gave. Check out the function preg_match_all on php.net. There are some more HTML attribute grabbers there you can use.

mohamad_1978

good it is work just one qustion - i know i bother u 🙂 - ur code is how to grap the adresses and this is what i need now i want to know how to rewrite them in $text
lets say i want to change .gif from every link to .bmp

dankstick

Replace the preg... line with this:

preg_match_all('/img src= ([a-z0-9A-Z.\/:]+.(gif|jpg|bmp|tiff|tif|png)) /U', $text, $out);

The section "(gif|jpg|bmp|tiff|tif|png)" has the types that it WILL match. Simply have only "(jpg)" to match only .jpg files or "(gif|jpg)" to match .gif and .jpg. Add more extensions as you like.

mohamad_1978

i dont know what to say to u "thanks alot"