[WordPress] Remote Requests with wp_remote_get

00-wp_remote_get.php

<?php

$file = wp_remote_get( 'https://example.local/file.png' );
if ( ! isset( $file['headers'] ) ) {
  
  /*
   * TODO: You may want to return early here, display an error,
   * or provide messaging to the user.
   */
}

if ( is_wp_error( $file ) ) {
  
  /*
   * TODO: Display an error message to the user that the file they
   * requested was not successfully retrieved.
   */
}

/* 
 * Get the base directory where we'll store the file. This will just be 
 * wp-content/uploads.
 */
$upload_dir   = wp_upload_dir();
$upload_dir = trailingslashit( $upload_dir['basedir'] );

/*
 * Give the file a name that we'll use to write to disk. And
 * build the path to the file including the directory and file name.
 */
$uploaded_filename = 'uploaded.png';
$file_path         = $upload_dir . $uploaded_filename;

/*
 * Open a resource for writing the file, write the data, and then close
 * the resource.
 */
$resource = fopen( $file_path, 'w' );
fwrite( $resource, $file['body'] );
fclose( $resource );