For some reason this PHP code below will not work, I can not figure it out.
It is very strange, file_exists does not seem to see that the image does exist, I have checked to make sure a good file path is being inserted into the file_exists function and it is still acting up
If I change file_exists to !file_exists it will return an images that exist and ones that do not exist
define('SITE_PATH2', 'http://localhost/');
$noimg = SITE_PATH2. 'images/userphoto/noimagesmall.jpg';
$thumb_name = 'http://localhost/images/userphoto/1/2/2/59874a886a0356abc1_thumb9.jpg';
if (file_exists($thumb_name)) {
$img_name = $thumb_name;
}else{
$img_name = $noimg;
}
echo $img_name;
file_exists()
needs to use a file path on the hard drive, not a URL. So you should have something more like:
$thumb_name = $_SERVER['DOCUMENT_ROOT'] . 'images/userphoto/1/2/2/59874a886a0356abc1_thumb9.jpg';
if(file_exists($thumb_name)) {
some_code
}
docs say:
As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to List of Supported Protocols/Wrappers for a listing of which wrappers support
stat()
family of functionality.
file_exists
does only work on the local file system.
So try this if you're using localhost :
$thumb_name = 'images/userphoto/1/2/2/59874a886a0356abc1_thumb9.jpg';
if (file_exists($_SERVER['DOCUMENT_ROOT'].$thumb_name)) {
$img_name = SITE_PATH2.$thumb_name;
} else {
$img_name = $noimg;
}
Have you enabled the option which allows you to use external URLs? You can set it in php.ini:
allow_url_fopen = 1
http://php.net/manual/en/function.file-exists.php
did you check the comments below?
Just reading parts of it, but there seem to be several issues.
Caching may be a problem. When opening FTP urls it always returns true (they say in the comments) ...
您必须编写类似于"file:///C:/Documents%20and%20Settings/xyz/Desktop/clip_image001.jpg"
的文件路径。
Try Below one. Its working for me
define('SITE_PATH2', 'http://localhost/');
$noimg = SITE_PATH2. 'images/userphoto/noimagesmall.jpg';
$thumb_name = 'http://localhost/images/userphoto/1/2/2/59874a886a0356abc1_thumb9.jpg';
if ($fileopen = @fopen($thumb_name)) {
$img_name = $thumb_name;
fclose($fileopen);
}else{
$img_name = $noimg;
}
echo $img_name;
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