How can a specific value in a certain line be saved in PHP?

To save a specific value from a certain line in PHP, you can read the contents of the file line by line and extract the desired value using string manipulation functions like strpos and substr. Once you have the value, you can store it in a variable or save it to a database for further use. 

$filename = 'sample.txt';
$lineNumber = 3; // specify the line number you want to extract value from
$handle = fopen($filename, "r");

if ($handle) {
    $currentLine = 0;
    while (($line = fgets($handle)) !== false) {
        $currentLine++;
        if ($currentLine === $lineNumber) {
            $value = substr($line, strpos($line, ':') + 1);
            // save the extracted value to a variable or database
            break;
        }
    }

    fclose($handle);
}

Keywords

PHP variable value save line

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