我的 file_exists()
返回 false,即使提供图像来检查 https://www.google.pl/logos/2012/haring-12-hp.png
存在。为什么?
下面我展示了准备在本地主机上启动的完整失败的 PHP 代码:
$filename = 'https://www.google.pl/logos/2012/haring-12-hp.png';
echo "<img src=" . $filename . " />";
if (file_exists($filename)) {
echo "The file $filename exists";
} else {
echo "The file $filename does not exist";
}
最佳答案
$filename= 'https://www.google.pl/logos/2012/haring-12-hp.png';
$file_headers = @get_headers($filename);
if($file_headers[0] == 'HTTP/1.0 404 Not Found'){
echo "The file $filename does not exist";
} else if ($file_headers[0] == 'HTTP/1.0 302 Found' && $file_headers[7] == 'HTTP/1.0 404 Not Found'){
echo "The file $filename does not exist, and I got redirected to a custom 404 page..";
} else {
echo "The file $filename exists";
}
关于php - 即使文件存在(远程 URL),file_exists() 也会返回 false,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10444059/