Concatenate files in PHP

Question

I\'d like to know if there is a faster way of concatenating 2 text files in PHP, than the usual way of opening txt1 in a+, reading txt2 li

Answer 1

I have found using *nix cat to be the most effective here, but if for whatever reason you don't have access to it, and you are concatenating large files, then you can use this line by line function. (Error handling stripped for simplicity).

function catFiles($arrayOfFiles, $outputPath) {

    $dest = fopen($outputPath,"a");

    foreach ($arrayOfFiles as $f) {

        $FH = fopen($f,"r");

        $line = fgets($FH);

        while ($line !== false) {

            fputs($dest,$line);

            $line = fgets($FH);

        }

        fclose($FH);

    }

    fclose($dest);

}