iOS sends a picture to the server, how to save the picture on the PHP side

As the title says, what was sent is binary. Can I write it directly into the file? The file suffix should be .png or .jpg or something

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As the title says, what was sent is binary. Can I write it directly into the file? The file suffix should be .png or .jpg or something

Your interface now

<code>print_r($_FILES);
print_r($_POST);</code>

See what I print so I can decide the next step

Let the ios client tell you the file suffix, and then you just use file_put_content