determinate is there a picture

[Regany]

Is it possible to determinate if there is a picture under the source.

for example:
<img src='picture011.jpg'>
how to determinate is the 'pictere011.jpg' exists?

 

[sleipnir214]

Try to fetch it? You could use fopen() or cURL functions for this.

If I wanted to do it as efficiently as possible, I might use fsockopen() and issue an HTTP "HEAD" request so that the foreign server does not try to actually send the file.



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[vacunita]

You could use the [blue]file_exists()[/blue] function to find out wether it exists or not.

http://www.php.net/manual/en/function.file-exists.php

----------------------------------
Ignorance is not necessarily Bliss, case in point:
Unknown has caused an Unknown Error on Unknown and must be shutdown to prevent damage to Unknown.

 

[sleipnir214]

The use of file_exists() may or may not work.

The online manual entry for file_exists() states that the wrapper must support the stat() functionality for file_exists() to work.

The online manual section on supported wrappers [link] says HTTP and HTTPS do not support stat(). So file_exists() is not going to work with an HTTP resource.



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[vacunita]

Who said it was an HTTP or HTTPS resource. the OP just sated he wanted to check if a particular image file existed. They never stated it was located on another server or that is was accessed form somwhere else.

I assumed the file was supposed to be located in the same file system , hence file_exists should work.



----------------------------------
Ignorance is not necessarily Bliss, case in point:
Unknown has caused an Unknown Error on Unknown and must be shutdown to prevent damage to Unknown.

 

[sleipnir214]

vacunita
I don't understand your last post. At no time have I disagreed with you about file_exists().



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[vacunita]

I'm not saying you disagree, just pointing out that it should work given the right circumstances.

----------------------------------
Ignorance is not necessarily Bliss, case in point:
Unknown has caused an Unknown Error on Unknown and must be shutdown to prevent damage to Unknown.