Why is my PHP `while (!feof())` loop not displaying the entire text file, and how can I fix it?

PHP - Loop Inefficiency in Reading and Displaying Text File Contents

In PHP, you aim to effectively read and display the entirety of a text file. However, you have encountered an issue where the while (!feof()) loop is not outputting all the content as intended.

The problem arises due to the placement of the end-of-file (EOF) check. In your code, the EOF check is performed before the content is actually outputted. This can result in situations where the last string in the file is only partially printed.

To rectify this, place your EOF check within the reading process itself. The corrected code below:

while (($buffer = fgets($handle, 4096)) !== false) {
    $trimmed = trim($buffer);
    echo $trimmed;
}

Additionally, it's recommended to avoid the use of the suppression operator (@) before fopen as it can conceal errors that may occur during file opening. Your updated code without the error suppression:

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

Now, the loop will iterate through the file until the EOF is reached, outputting all the content correctly. Remember, for robust code, it's advisable to handle any errors that may occur during the file opening or reading process.

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