asked on

PHP - how to find out if $_FILES is empty

I am trying to check if the superglobal file is empty and despite it being empty, it still passes through the !empty check. Any idea how to sort this out. I am using a simple iteration (below) to loop through all the file fields but !empty doesn't catch an empty field.

Any tips or suggestions are much appreciated

Thanks a lot

$images = $_FILES;
		$count = 0;
		$process_record = array(); // array to collect records of progress
		foreach ($images as $fieldname => $value ) {
			$count++;
			if (!empty($value)) {
				print_r($value) ;
				//Process image
				//echo $fieldname; print_r($value);echo "<br />";
				$img = new Image;
				$img->attach_file($value, $user->id, $count);

}

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ASKER CERTIFIED SOLUTION

hielo

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czechmate1976

ASKER

returns array with keys : where the error key indicates 4
I need to check if a file's been attached so it doesn't loop through empty fields and report errors which may not be errors..

Would this be ok: if (!empty($value['name'])) { ... }
or it's not really a correct or a good way to do it??

Array ( [image_1] => Array ( [name] => [type] => [tmp_name] => [error] => 4 [size] => 0 ) [image_2] => Array ( [name] => [type] => [tmp_name] => [error] => 4 [size] => 0 ) [image_3] => Array ( [name] => [type] => [tmp_name] => [error] => 4 [size] => 0 ) [image_4] => Array ( [name] => [type] => [tmp_name] => [error] => 4 [size] => 0 ) [image_5] => Array ( [name] => [type] => [tmp_name] => [error] => 4 [size] => 0 ) )

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czechmate1976

ASKER

Sorry.. thanks for your contribution... I eventually figured this out that there must be a value in the array but it took me a moment

hielo

foreach ($images as $fieldname => $subArr )
{
 	if($subArr['size'] > 0)
	{
	  echo "processing $fieldname<br>";
	}
	else
	{
	 echo "$fieldname is empty<br>";
	}
}

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SOLUTION

hielo

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czechmate1976

ASKER

I have now realized that.. but isn't it enough to check the $value['name'] to find out if the file field has been used?? Thanks

hielo

Like I said,

"...inspect ANY of the properties of the sub Array".

So, yes:
if( !empty($value['name']) )

is fine.

Avinash Zala

check this:

<?php

if(isset($_FILES['name']) && !empty($_FILES['name']))
{
// files uploaded
}
else
{

// no files uploaded
}

?>

Hope this helps
Addy

Mehul_Panchal

<?php

if(isset($_FILES['name']) && !empty($_FILES['name']))
{
// files uploaded
}
else
{

// no files uploaded
}

?>

czechmate1976

ASKER

thanks mate a lot, you really helped to resolve my problem and think about things slightly differently :-)