使用http://www.php.net/manual/en/function.imagecopyresized.php。。。如何使用getimagesize()函数获取图像大小？
代码：
<?php
if(isset($_FILES['images'])){
//TEST1:
$img = resize_this_image_now($_FILES['images']['tmp_name']);
//TEST2:
$img = resize_this_image_now($_FILES['images']['name']);/// This Drastically failed.
$new_image = getimagesize($img);
var_dump($new_image[0]);// I guessed this should have printed out the WIDTH_OF_THE_IMAGE... but, it prints some NON_READABLE stuffs (why?)
}
// The PHP.NET CODE in a Function
function resize_this_image_now($filename){
// File and new size
// $filename = 'test.jpg';
$percent = 0.5;
// Content type
header('Content-Type: image/jpeg');
// Get new sizes
list($width, $height) = getimagesize($filename);
$newwidth = $width * $percent;
$newheight = $height * $percent;
// Load
$thumb = imagecreatetruecolor($newwidth, $newheight);
$source = imagecreatefromjpeg($filename);
// Resize
imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
// Output
return imagejpeg($thumb);
}
?>
我只想得到Image的Size。。。。此外，有可能做一些类似的事情吗：
$_FILES['images']['tmp_name'] = $the_newly_resized_image_returned_from_the_PHP_dot_NET_code';。。。。因此，['images']['tmp_name']现在将具有此新图像作为源？？
任何建议都将不胜感激。。。
我决定花点时间研究你的问题。我发现，我认为你不需要像以前那样通过imagejpeg()来return调整大小的图像。在function中调用imagejpeg()之后，您可能还需要添加一个imagedestroy()，以销毁所使用的临时内存。
在调整图像大小之前，您需要先完全上传图像。如果您愿意，您可以在执行任何操作时将图像发送到临时存储中，这样Php就不必以'tmp_name'格式处理它。。。然后你可以稍后销毁图像。
一旦图像完全上传，事情就会变得更容易 请注意，这个答案是经过几次尝试和错误后得出的。。。请明智地使用这一策略。 希望能有所帮助。 if(isset($_FILES['images'])){
//may be some random numbers to accompany it.
$rand = floor((mt_rand()+rand()+mt_rand())/3);
//Send it to the temporary folder you have had to create.
if(move_uploaded_file(
$_FILES['images']['tmp_name'],'temporary_storage/image_'.$rand.'.jpg')){
//Then run the `resize` function from here.
$image_resized = resize_this_image_now('temporary_storage/image_'.$rand.'.jpg');
//Now You can get the size if you wish.
list($width,$height) = getimagesize('temporary_storage/image_'.$rand.'.jpg');
// Out put
echo "W:".$width."<br>H:".$height;
//After you use it as desired, you can now destroy it using unlink or so.
unlink('temporary_storage/image_'.$rand.'.jpg');
}else{
echo "Upload Error goes here";
}
}