user2896120 user2896120 - 4 months ago 6
jQuery Question

Relaying multi-part form data through Ajax to PHP

I have a form in my HTML. This form takes text inputs and one image:

HTML

<form class="article_properties_form" action="" method="POST" enctype="multipart/form-data">
<textarea style="display: none" class="inputNumber" name="pages"></textarea>
<p>Image</p>
<input style="padding: 0px" type="file" name="image">
<p>Subtitle</p>
<input type="text" name="subtitle">

<p>Text</p>
<textarea name="text" rows="4"></textarea>
<input id="properties_btn" type="submit" value="Submit/Update">
</form>


This form will be submitted through Ajax:

jQuery/Ajax

$('body').on('submit', '.article_properties_form', function(e) {
e.preventDefault();

if ($(this).valid()) {
$.ajax({
type: 'POST',
url: '',
data: $(this).serialize(),
success: function() {

}
});
}

});


The data will be relayed to PHP:

PHP

if (isset($_POST["subtitle"], $_POST["pages"], $_POST["text"], $_POST["image"]))
{
//Some SQL
}


The form works successfully when I remove the enctype and the input type="image" property. This means that I must be doing something wrong with the image property. I can't figure out how to relay this form through Ajax to PHP with the image property intact. How can I accomplish this?

Answer

You need to keep the enctype and to catch the file value, you need to use $_FILES['image'] to get the "image" value.

On the AJAX code, use this:

data: new FormData( this ),
processData: false,
contentType: false
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