PHP报错autoload.php not found，调用Instagram-API代码执行异常求助

Let's get this sorted out—missing autoload.php is a super common Composer-related hiccup, and it's almost certainly why your script is only outputting hey1 and hey2 instead of running the Instagram API code properly. Here's what you need to do step by step:

• First, confirm Composer is installed on your system
  Open your terminal and run composer --version. If you get a version number back, you're good to go. If not, you'll need to install Composer first (it's quick and free).

• Navigate to your project root directory
  Make sure you're in the folder where your project's composer.json file lives. If you don't have a composer.json yet, that's okay—we'll fix that next.

• Install dependencies and generate autoload.php
  If you already have a composer.json that includes the Instagram API dependency, run this command in your terminal:

  composer install
  

  This will download all required packages into a vendor folder, and automatically generate the vendor/autoload.php file you're missing.

  If you don't have a composer.json, run these commands instead to set everything up:

  composer init
  composer require mgp25/instagram-api
  

  The init command will walk you through creating a basic composer.json, and the require command will pull in the Instagram API package and generate the autoloader.

• Make sure your script loads the autoloader
  At the very top of your PHP script, add this line to include the autoloader (adjust the path if your script is in a subdirectory—for example, use ../vendor/autoload.php if your script is one folder down):

  require __DIR__ . '/vendor/autoload.php';
  

• Test your script again
  Run your PHP script now—it should properly load the Instagram API classes and execute the rest of your code, not just stop at hey1 and hey2.

If you still run into issues, double-check that the path to autoload.php is correct (it's easy to mess up relative paths!) and that Composer didn't throw any errors during the install process.

内容的提问来源于stack exchange，提问作者user9389911