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Php – Why does fgets and fopen fail to "open a stream" except for the last line of a file?

Why does fgets and fopen fail to "open a stream" except for the last line of an input file?

I’m trying to read a file of directory trees and txt files and open each file.

filelist.txt contains:

a/1600/file.txt
b/1600/file.txt
c/1600/file.txt

Directory:

enter image description here

c/1600/file.txt contains the text directory c

The output in index.php is this:

Warning: file_get_contents(a/1600/file.txt ): Failed to open stream:
No such file or directory in /Users/joe/Sites/php/index.php on line 9

Warning: file_get_contents(b/1600/file.txt ): Failed to open stream:
No such file or directory in /Users/joe/Sites/php/index.php on line 9

directory c

Why is the contents of only c/1600/file.txt output?

index.php (PHP 8.2):

$handle = fopen("filelist.txt", "r");


if ($handle) {
    
    while (($line = fgets($handle)) !== false) {

        $eachfilecontents = file_get_contents($line, true);

        echo $eachfilecontents;

    }

    fclose($handle);
}
Tags:

2

Answers


  1. 0

    I have modify your code to check file before proceed to next

    <?php
$handle = fopen("filelist.txt", "r");
if($handle){
    while(($line = fgets($handle)) !== false) {
        $line = trim($line);    
        if(file_exists($line)){ 
            $eachfilecontents = file_get_contents($line);
            echo $eachfilecontents;
        }
        else{ echo "File not found: " . $line . "<br>"; }
    }    
    fclose($handle);
}    
?>

    replace your index.php file code with this and it will return you data from all of files.

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  2. 0

    The relevant part of the error message is No such file or directory. From fgets() documentation:

    Reading ends when length – 1 bytes have been read, or a newline (which is included in the return value)

    If last line works, it’s because the file doesn’t have a trailing new line.

    You can e.g. trim it yourself:

    $eachfilecontents = file_get_contents(rtrim($line), true);

    On a side note, I’m not sure why you’re using the file_get_contents() function with the use_include_path flag, it sounds like an unnecessary burden.

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