How can a while loop be used in PHP to read text line by line and split it after a certain character limit?

To read text line by line and split it after a certain character limit in PHP, you can use a while loop to read each line from the text file, check if the line exceeds the character limit, and then split it accordingly. You can use the `substr()` function to split the line at the desired character limit. 

$filename = 'example.txt';
$char_limit = 50;

$file = fopen($filename, 'r');

while (!feof($file)) {
    $line = fgets($file);
    
    if (strlen($line) > $char_limit) {
        $split_lines = str_split($line, $char_limit);
        foreach ($split_lines as $split_line) {
            echo $split_line . PHP_EOL;
        }
    } else {
        echo $line;
    }
}

fclose($file);

Keywords

PHP while loop read text split character limit

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