file-exists

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How to check if a file exists from a url

I need to check if a particular file exists on a remote server. Using is开发者_运维技巧_file() and file_exists() doesn\'t work. Any ideas how to do this quickly and easily?You don\'t need CURL for tha[详细]

2023-04-11 22:20 分类：问答
Is there a way to do this check without two if statements in PHP?

i have this if statement if(file_exists( $_SERVER{\'DOCUMENT_ROOT\'}.$writabledir.$name) && filemtime($_SERVER{\'DOC开发者_JAVA技巧UMENT_ROOT\'}.$writabledir.$name) < $olddate){[详细]

2023-04-10 10:01 分类：问答
How do you get the first existing ancestor directory given a file path?

In Perl, if given a file path, how do you find the first existing ancestor? For example: If given the path /opt/var/DOES/NOT/EXIST/wtv/blarg.txt and directory /opt/var/DOES/ is not present but dire[详细]

2023-04-06 00:28 分类：问答
PHP file exists

Using PHP I need to determine if a file exists. I\'ve tried file_exists() but the permissions are limited and I don\'t believe开发者_如何学JAVA PHP can read the file permissions. The file is a photo[详细]

2023-03-27 05:24 分类：问答
Returning XML value in function

I have a function that returns if (file_exists($address)) { return simplexml_load_file($address) or die(\"Error loading XML\");开发者_运维问答[详细]

2023-03-25 15:05 分类：问答
How can you check if a file is stored in Azure Blob

We have a flash app running on our web site (which is a Azure site).It needs t开发者_如何学Goo access images in blob storage.I had to create a crossdomain.xml file programatically so there won\'t be a[详细]

2023-03-23 21:28 分类：问答
file_exists in php code

I have a simple statement below: if(file_exists(\'/images/alum/\'.$profile[\'pic\'])) echo \'/images/alum/\'.$profile[\'pic\'];[详细]

2023-03-19 23:13 分类：问答
file_exists() or is_readable()

Which one should you use when yo开发者_JAVA百科u want to include a PHP file? if(file_exists($file) require \"$file\";[详细]

2023-03-18 01:33 分类：问答
Fastest way to redirect missing image files

I have an on-the-fly thumbnailing system and am trying to find the best way to make sure it\'s as fast as possible when serving up images. Here is the current flow:[详细]

2023-03-13 10:23 分类：问答
htaccess: Check if a file exists based on variables

I am writing a on-the-fly thumbnail creator for a CMS and need to dynamically check if a file exists. I currently have created an htaccess file that checks if the file you are requesting exists, but n[详细]

2023-03-12 00:09 分类：问答