PHP 如果文件存在

Question

这是我的代码。

$filename = "$myMedia catalog/category/ $myImage.png";
$filename = str_replace(" ", "", $filename);

if (file_exists($filename)) {
    echo "The file $filename exists";
} else {
    echo "The file $filename does not exist";
}

上面的变量输出确实存在的http://50.87.6.244/~storeupp/media/catalog/category/Game_Used.png。但是，它说它不存在。

知道为什么吗？

Answer 1

试着像这样使用:

 $filename = dirname(__FILE__) . "/ $myMedia catalog/category/ $myImage.png";
 $filename = str_replace(" ", "", $filename);

 if (file_exists($filename)) {
     echo "The file $filename exists";
 } else {
     echo "The file $filename does not exist";
 }