How can PHP be used to extract relevant information from a text file without writing to a separate file first?

To extract relevant information from a text file without writing to a separate file first, you can read the content of the text file line by line and process the data as needed without saving it to another file. This can be achieved by opening the text file in read mode, reading each line using a loop, and extracting the relevant information from each line. 

$file = fopen('example.txt', 'r');

if ($file) {
    while (($line = fgets($file)) !== false) {
        // Process each line to extract relevant information
        // Example: echo $line;
    }
    
    fclose($file);
} else {
    echo 'Error opening the file.';
}

Keywords

PHP file handling text file data extraction parsing

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