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<?php
/**
* Helper library for working with uploads
*/
function tp_upload_check_format($mime) {
$accepted_formats = array(
'image/jpeg',
'image/png',
'image/gif',
'image/pjpeg',
'image/x-png',
);
if (!in_array($mime, $accepted_formats)) {
return false;
}
return true;
}
function tp_upload_memory_check($image_lib, $num_pixels) {
if ($image_lib !== 'GD') {
return true;
}
$mem_avail = ini_get('memory_limit');
$mem_avail = rtrim($mem_avail, 'M');
$mem_avail = $mem_avail * 1024 * 1024;
$mem_used = memory_get_usage();
$mem_required = ceil(5.35 * $num_pixels);
$mem_avail = $mem_avail - $mem_used - 2097152; // 2 MB buffer
if ($mem_required > $mem_avail) {
return false;
}
return true;
}
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