How to solve the problem that the screen output is displayed as "ArrayArray" when writing a file?

Question

I have a method as follows. Simplify the code for clarity:

function somefunction($data){
    $somestuff = createMyGeojson($data)
    write_aa_winter_sports_points_to_file($geojson);
    return $geojson;
}

function write_aa_winter_sports_points_to_file($content){

    $file = "aa_winter_sports_points.geojson";
    $dir = get_template_directory() .'/fs_data/aa_winter_sports_points/override_file_for_upload/';
    file_put_contents($dir.$file, $content);
}

return $geojson displays the beautifully formatted json on the screen, but when I view my file all the corresponding data looks like ArrayArray. I tried print_r() but it didn't help. How do I save the screen to a file using file_put_contents()?

This is the current content of my file.

FeatureCollectionaa_winter_sports_pointsArrayArray

Answer 1

If you want a string format similar to the output of print_r(), you can pass the second parameter true to the function.

file_put_contents($dir.$file, print_r($content, true));