Upload Textarea Content as a file - file-upload

Question

I want to upload the content of a textarea as a file because content exceed max_input_vars limit in php.ini. In the future maybe it will increase so I prefer to upload it as a file ^^
I show the content to the user in a textarea, so it is editable :) And then click "Save" and send the content of the textarea as a file. How can I do ?
<span onclick="data_save();">Save</span>
<textarea id="textarea">
<?php
print_r($tab);
?>
</textarea>
<script type="text/javascript">
<?php
echo file_get_contents('/var/www/'.$jsdir.'/jquery-2.1.4.min.js');
?>
function data_save()
{
var textToWrite = document.getElementById("textarea").innerHTML;
var textFileAsBlob = new Blob([ textToWrite ], { type: 'text/plain' });
var fileNameToSaveAs = "ecc.plist";
var downloadLink = document.createElement("a");
downloadLink.download = fileNameToSaveAs;
downloadLink.innerHTML = "Download File";
if (window.webkitURL != null)
{
// Chrome allows the link to be clicked without actually adding it to the DOM.
downloadLink.href = window.webkitURL.createObjectURL(textFileAsBlob);
} else {
// Firefox requires the link to be added to the DOM before it can be clicked.
downloadLink.href = window.URL.createObjectURL(textFileAsBlob);
downloadLink.onclick = destroyClickedElement;
downloadLink.style.display = "none";
document.body.appendChild(downloadLink);
}
// downloadLink.click();
$.ajax({
url: 'data_save.php',
data: data,
type: 'POST',
success: function(retour)
{
if (retour.indexOf('Oups') != -1)
alert(retour);
},
error: function(obj, text, error)
{
alert("Oups.. " + obj.responseText);
}
});
}
</script>```

Answer 1

It not possible, user must download and the upload the file by himself....