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Get max upload size as set in php.ini

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  1. <?php
  2.  
  3. // TESTED:
  4. function getMaxFileUploadSize() {
  5. 	$maxPost = ini_get('post_max_size'); 
  6. 	if     (substr($maxPost,-1) == 'K') $maxPost = substr($maxPost,0,-1) * 1024;
  7. 	elseif (substr($maxPost,-1) == 'M') $maxPost = substr($maxPost,0,-1) * 1024 * 1024;
  8. 	elseif (substr($maxPost,-1) == 'G') $maxPost = substr($maxPost,0,-1) * 1024 * 1024 * 1024;
  9. 	$maxUpload = ini_get('upload_max_filesize');
  10. 	if     (substr($maxUpload,-1) == 'K') $maxUpload = substr($maxUpload,0,-1) * 1024;
  11. 	elseif (substr($maxUpload,-1) == 'M') $maxUpload = substr($maxUpload,0,-1) * 1024 * 1024;
  12. 	elseif (substr($maxUpload,-1) == 'G') $maxUpload = substr($maxUpload,0,-1) * 1024 * 1024 * 1024;
  13. 	$maxFileSize = min($maxPost, $maxUpload);
  14. 	$maxFileSize = floor($maxFileSize / 1024 / 1024) . 'MB';
  15. 	return $maxFileSize;
  16. }
  17.  
  18. // UNTESTED
  19. function getMaxFileUploadSize() {
  20. 	$maxPost = _interpretKMG(ini_get('post_max_size')); 
  21. 	$maxUpload = _interpretKMG(ini_get('upload_max_filesize'));
  22. 	$maxFileSize = min($maxPost, $maxUpload);
  23. 	$maxFileSize = floor($maxFileSize / 1024 / 1024) . 'MB';
  24. }
  25.  
  26. function _interpretKMG($text) {
  27. 	if (preg_match('/^\d+$/', $text) {
  28. 		return $text;
  29. 	}
  30. 	$num = substr($text,0,-1);
  31. 	$suffix = substr($text,-1);
  32. 	switch ($suffix) {
  33. 		case 'G': $num *= 1024;
  34. 		case 'M': $num *= 1024;
  35. 		case 'K': $num *= 1024;
  36. 	}
  37. 	return $num;
  38. }

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