adding or change img width value dynamically

[scvinodkumar]

hi there,

 

i want to add the width attribute if there is not or change the width value to an img tag that comes from the content.

 

for example, i have the following content

 

<p>Also from the wonderful Tank Theory line is this nice Comrade t-shirt. She’s not all that innocent, not that she really looks it, but if you inspect the shirt closer you’ll see she is hiding something on the back. The shirt is now available in red with black wterbased print, and gold foil accents.</p>
<p><a title="Tank Theory Comrade" href="http://www.tanktheory.com/store/standard-t-shirts/product/comrade/" target="_blank"><img class="alignnone size-full wp-image-2642" title="m_509_tank_theory_red" src="http://www.birdfight.com/blogfiles/wp-content/uploads/2009/02/m_509_tank_theory_red.jpg" alt="m_509_tank_theory_red" height="400" width="399"></a></p>

 

or how to resize the image dynamically

 

thanks for you help

[MadTechie]

list($width, $height) = getimagesize("img.jpg");
echo "$width, $height";

 

[scvinodkumar]

thanks for your reply,

 

but i want to resize the image from the content dynamically

[The Little Guy]

and you would, you just take his code and do this:

 

$img = 'img.jpg';
list($width, $height) = getimagesize($img);
echo '<img src="'.$img.'" width="'.($width/2).'" height="'.($height/2).'" />';

[premiso]

With the image tag:

 

<?php
$string = '<p>Also from the wonderful Tank Theory line is this nice Comrade t-shirt. She’s not all that innocent, not that she really looks it, but if you inspect the shirt closer you’ll see she is hiding something on the back. The shirt is now available in red with black wterbased print, and gold foil accents.</p>
<p><a title="Tank Theory Comrade" href="http://www.tanktheory.com/store/standard-t-shirts/product/comrade/" target="_blank"><img class="alignnone size-full wp-image-2642" title="m_509_tank_theory_red" src="http://www.birdfight.com/blogfiles/wp-content/uploads/2009/02/m_509_tank_theory_red.jpg" alt="m_509_tank_theory_red" height="400" width="399"></a></p>';

$string = '<p>testing this other image <img src="blahblah.jpg" height="50">';

if (stristr($string, "<img") !== false) {
if (preg_match('~<img.*width="(.*)".+?>~is', $string) > 0) {		
	$string = preg_replace("~<img(.*)width=\"(.*)\"(.+?)>~is", "<img$1width=\"500\"$3>", $string);
}else {		
	$string = preg_replace("~<img(.+?)>~is", "<img $1 width=\"500\">", $string);
}
}
echo htmlentities($string);
?>

 

Tested for both (commented out the lower one to test to upper). It worked as expected. As far as if there is a better way to do this, no clue, probably since I am still new to regex.

 

I am working on a better way to do it

 

[scvinodkumar]

wow this is what i want

 

many thanks for you effort.