imagesx() expects parameter 1 to be resource, string given - php

Question

I try to upload multiple files to my bucket earlier it worked well but now I try to resize and compress the image before upload, it throws error imagesx() expects parameter 1 to be resource, string given here is the code :
foreach($_FILES as $ind => $filegroup){
$count=0;
foreach($_FILES[$ind]['name']as $actfile){
$tmp=$_FILES[$ind]['tmp_name'][$count];
$count=$count + 1;
$newind= str_replace('_',' ',$ind);
$filenamenew= $insertedids[0].$newind."_".$count.".jpg";
$temp='menu_images/'.$filenamenew;
$im = imagecreatetruecolor(700, 700);
$bg = imagecolorallocate ( $im, 255, 255, 255 );
imagefilledrectangle($im,0,0,700,700,$bg);
$max_width=700;
$max_height= 700;
$width = imagesx($tmp);
$height = imagesy($tmp);
# taller
if ($height > $max_height) {
$width = ($max_height / $height) * $width;
$height = $max_height;
}
# wider
if ($width > $max_width) {
$height = ($max_width / $width) * $height;
$width = $max_width;
}
$im2 = imagescale($tmp, $width, $height);
imagecopy($im, $im2, (imagesx($im)/2)-(imagesx($im2)/2), (imagesy($im)/2)-(imagesy($im2)/2), 0, 0, imagesx($im2), imagesy($im2));
imagejpeg($im, NULL , 70);
I am trying to upload this final $im to bucket , I have already installed gd library in my cent os

Answer 1

imagesx() expects an image resource as parameter, returned by one of the image creation functions for example imagecreatetruecolor(). If you need the height or width of of an image, you can use getimagesize() like below.
list( $width, $height ) = getimagesize( 'filepath' );

Answer 2

Try this:
...
foreach($_FILES[$ind]['name'] as $fid => $actfile){ // add $fid in here!
...
list($width, $height) = getimagesize($tmp=$_FILES[$ind]['tmp_name'][$fid]);
echo "width: $width; height: $height<br />\n";
...
}
...

Answer 3

The key problem was posting sourcefile to s3 bucket I changed that to body , also I changed my php settings to allow file upload till 5 mb
Here is the solution:
$im = imagecreatetruecolor(700, 700);
$bg = imagecolorallocate ( $im, 255, 255, 255 );
imagefilledrectangle($im,0,0,700,700,$bg);
list( $width, $height , $image_type ) = getimagesize($tmp);
$max_width=700;
$max_height= 700;
# taller
if ($height > $max_height) {
$width = ($max_height / $height) * $width;
$height = $max_height;
}
# wider
if ($width > $max_width) {
$height = ($max_width / $width) * $height;
$width = $max_width;
}
switch ($image_type)
{
case 1: $im3 = imagecreatefromgif($tmp); break;
case 2: $im3 = imagecreatefromjpeg($tmp); break;
case 3: $im3 = imagecreatefrompng($tmp); break;
default: return ''; break;
}
$im2 = imagescale($im3, $width, $height);
imagecopy($im, $im2, (imagesx($im)/2)-(imagesx($im2)/2), (imagesy($im)/2)-(imagesy($im2)/2), 0, 0, imagesx($im2), imagesy($im2));
$imgdata = image_data($im);
function image_data($gdimage)
{
ob_start();
imagejpeg($gdimage,NULL,70);
return(ob_get_clean());
}
And while uploading to bucket
$result = $s3->putObject([
'Bucket' => 'yourbucket',
'Key' => 'filename',
'Body' => $imgdata
]);