Resize and rename PNG, JPG or GIF file with PHP
Question
is there any way, using PHP, that you can resize an image sent from a HTML form's WIDTH (Only PNG, JPG and GIF) to a max value of let's say 500px (so if the file is 350px wide there isn't any stretching), and rename it to a random 15 character name (eg "e19gy675jo5el7g.png") and save it to the image/ directory?
I have some code already but it doesn't resize the file and allows all file types to be uploaded (it only renames the file to a random name). I don't want to use the accept="image/*" HTML code in the form so if you could help me find a PHP solution that would be great.
Here's my PHP code...
<?php
function findexts ($filename)
{
$filename = strtolower($filename) ;
$exts = split("[/\\.]", $filename) ;
$n = count($exts)-1;
$exts = $exts[$n];
return $exts;
}
$ext = findexts ($_FILES['uploaded']['name']) ;
$ran = rand () ;
$ran2 = $ran.".";
$target = "image/";
$target = $target . $ran2.$ext;
if(move_uploaded_file($_FILES['uploaded']['tmp_name'], $target))
{
echo "The file has been uploaded as ".$ran2.$ext;
}
else
{
echo "Sorry, there was a problem uploading your file.";
}
?>
And here's my HTML
<html>
<body>
<form enctype="multipart/form-data" action="upload.php" method="post">
<div>
<input name="uploaded" type="file" />
</div>
<br>
<button type="submit">Upload</button>
</form>
</body>
</html>
Sorry for the complicated question, I'm just quite new with PHP :-)
Thanks in advance :-)
1 answers
solution1
0 2013-05-01 07:54:09
I don't know the whole code but you can do it by GD library of PHP.Use
getimagesize($filename)
TO get the image details and check the width using it.If width is less than 500 then do not resize.
Link that may help you: http://forums.phpfreaks.com/topic/210603-uploaded-image-change-width-and-height/
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