How to read an entire file to a string using PHP?

To read a file line by line, you use the fgets() function:

fgets ( resource $handle , int $length = ? ) : string|false

The following example uses the fread() function to read the contents of the entire population.txt file into a string and shows it on the webpage:

<?php

$filename = './public/population.txt';
$f = fopen($filename, 'r');

if ($f) {
    $contents = fread($f, filesize($filename));
    fclose($f);
    echo nl2br($contents);
}

Conclusion

In this page (written and validated by A. Gawali) you learned about . What's Next? If you are interested in completing PHP tutorial, we encourage you simply to start here: PHP Tutorial.

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