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This function accepts 5 parameters. The first 2 are necessary. The first parameter accepts the file location along with the filename which needs to be resized. 2nd parameter accepts the maximum width. the picture is resized to a maximum of this width and reduces the height proportionatly. The 4th parameter accepts a new filename. ( if you wish to rename the file or change its location after its been resized so as not to harm the original file. )
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<?php
function resizeImage($filename,$max_width,$max_height='',$newfilename="",$withSampling=true)
{
if($newfilename=="")
$newfilename=$filename;
// Get new sizes
list($width, $height) = getimagesize($filename);
//-- dont resize if the width of the image is smaller or equal than the new size.
if($width<=$max_width)
$max_width=$width;
$percent = $max_width/$width;
$newwidth = $width * $percent;
if($max_height=='') {
$newheight = $height * $percent;
} else
$newheight = $max_height;
// Load
$thumb = imagecreatetruecolor($newwidth, $newheight);
$ext = strtolower(getExtension($filename));
if($ext=='jpg' || $ext=='jpeg')
$source = imagecreatefromjpeg($filename);
if($ext=='gif')
$source = imagecreatefromgif($filename);
if($ext=='png')
$source = imagecreatefrompng($filename);
// Resize
if($withSampling)
imagecopyresampled($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
else
imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
// Output
if($ext=='jpg' || $ext=='jpeg')
return imagejpeg($thumb,$newfilename);
if($ext=='gif')
return imagegif($thumb,$newfilename);
if($ext=='png')
return imagepng($thumb,$newfilename);
}
?> | |
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| | | | mmx97 mmx97 wrote :1760
hello Moiz Sitabkhan
thank you for this code
1. but can you give us an Example by file include image resize function with images folder called images
2. in this code
if($ext=='jpg' || $ext=='jpeg')
$source = imagecreatefromjpeg($filename);
if($ext=='gif')
$source = imagecreatefromgif($filename);
if($ext=='png')
$source = imagecreatefrompng($filename);
what about bmp file ext?!!
thank you
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