https://legacy.forums.gravityhelp.com/topic/file-upload-and-validation Gravity Support Forums Topic: File upload and validation en-US Sun, 05 Apr 2026 15:34:58 +0000 http://bbpress.org/?v=1.0.1 q https://legacy.forums.gravityhelp.com/search.php https://legacy.forums.gravityhelp.com/topic/file-upload-and-validation#post-42033 Wed, 23 Nov 2011 16:39:07 +0000 andreyu 42033@https://legacy.forums.gravityhelp.com/ <p>Thanks,. that did the trick. </p> https://legacy.forums.gravityhelp.com/topic/file-upload-and-validation#post-41918 Tue, 22 Nov 2011 17:49:13 +0000 Alex Cancado 41918@https://legacy.forums.gravityhelp.com/ <p>The problem is that uploaded files are not available in the $_POST variable. You need to use $_FILES instead. However, if there are any validation errors in the form, Gravity Forms will have already uploaded the file and it won't be available in the $_FILES variable anymore. In that case you will need to check the $_POST variable.<br /> The following code snippet should do the trick for you.</p> <pre><code>//Note: Replace 1 in &quot;input_1&quot; with your actual file upload field id. $uploaded_files = json_decode(rgpost(&quot;gform_uploaded_files&quot;)); $is_file_uploaded = !empty($_FILES[&quot;input_1&quot;][&quot;name&quot;]) || isset($uploaded_files-&gt;input_1);</code></pre> https://legacy.forums.gravityhelp.com/topic/file-upload-and-validation#post-41872 Tue, 22 Nov 2011 11:19:50 +0000 andreyu 41872@https://legacy.forums.gravityhelp.com/ <p>Hi,</p> <p>I'm trying to make some text fields mandatory UNLESS the user selects a file in a separate file upload field.</p> <p>I've used the gform_validation hook to perform custom validation and I've run into a pretty big problem: the value of the file upload field isn't available in my validation function. The file I selected isn't anywhere in the $_POST array. Here's what happens:</p> <ol> <li> I select a file and click the submit button </li> <li> The custom validation kicks in. It can't find the value for the file input field so returns errors. </li> <li> I change nothing in the fields and click the submit button again </li> <li> Now the field value is ok, the validation checks and I'm allowed to continue </li> </ol> <p>I tried setting the file upload field as "required", just to see what would happen and everything is ok. That is strange to me, as I thought that gform_validation was triggered AFTER the normal validation. So it's weird that the normal validation has access to the field value, but my function doesn't.</p> <p>Any help would be greatly appreciated...thanks! </p>