warning : failed to load external entity

[wama_mms]

Hello

 

I am working on my graduation project and I have a critical problem with my php code and I am just beginner in php coding.

 

I am reading from text file IDs of papers and want to link between the ID that I read form my text file and the XML file so that is my code :

<?php

$file = fopen("abstract/Temp_id.txt","r");

$ids;

while(!feof($file))

{

    $ids = fgets($file);

   

    $xml = simplexml_load_file("abstract/$ids");//abstract is the folder which I save my files and //read from it

   

    $title="bibliomisc =".$xml->articleinfo[0]->bibliomisc;

 

    echo $title;

    echo"<a href=abstract/$ids title='Click to open '>$ids</a>";

}

fclose($file);

?>

 

BUT I worked on openssl and it is working if I give it the name of ID e.g.

$xml = simplexml_load_file("abstract/8104317");//it is working but if I read from file I got that error

 

 

Warning: simplexml_load_file() [function.simplexml-load-file]: I/O warning : failed to load external entity "8104317.xml " in /opt/lampp/htdocs/GP/xml_test.php on line 9

 

Notice: Trying to get property of non-object in /opt/lampp/htdocs/GP/xml_test.php on line 12

 

Notice: Trying to get property of non-object in /opt/lampp/htdocs/GP/xml_test.php on line 12

bibliomisc =

8104317.xml

Warning: simplexml_load_file() [function.simplexml-load-file]: I/O warning : failed to load external entity "" in /opt/lampp/htdocs/GP/xml_test.php on line 9

 

Notice: Trying to get property of non-object in /opt/lampp/htdocs/GP/xml_test.php on line 12

 

Notice: Trying to get property of non-object in /opt/lampp/htdocs/GP/xml_test.php on line 12

bibliomisc =

 

help please thanks

 

[PFMaBiSmAd]

The string that fgets returns, contains the newline character(s) at the end of each line. You would want to trim those off, since they are not actually part of the filename being put into the simplexml_load_file statement.

[wama_mms]

I didn't understand what exactly you said but I think you mean that I should trim(file)

and that is my new code

while(!feof($file))

{

    $ids = fgets($file);

   

    //$url = "$ids";

   

    $xml = simplexml_load_file(trim(fgets($file))

 

but I didn't work :( any suggestion please ?

and thanks for you reply

[PFMaBiSmAd]

You seem to be randomly changing your code. I suggest you read through both your original code and the last code you posted and try to determine why the change you made to it didn't do what you intended.

[wama_mms]

I solved this with the following code

 

$url = trim($ids, " \n");;

    $xml = simplexml_load_file("abstract/$url");

but I got a lot of warning because it reads the last line of my file and it is an empty file so please how to make this code doesn't read the last line which is empty