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Sep 22nd, 2009
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Dynamic path Function calling Error?

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Hi frnds...

Here i am creating thumbnail image...the code is working fine...

The variables are not working calling funtion....if i give static path, its working fine...

incase of dynamic path it displays some errors,but image created..image with full black(no photo).......plz check the below code...

PHP Syntax (Toggle Plain Text)
  1. function createthumb($name,$filename,$new_w,$new_h){
  2. 	$system=explode('.',$name);
  3. 	if (preg_match('/jpg|jpeg/',$system[1])){
  4. 		$src_img=imagecreatefromjpeg($name);
  5. 	}
  6. 	if (preg_match('/png/',$system[1])){
  7. 		$src_img=imagecreatefrompng($name);
  8. 	}
  9.  
  10. $old_x=imageSX($src_img);
  11. $old_y=imageSY($src_img);
  12. if ($old_x > $old_y) {
  13. 	$thumb_w=$new_w;
  14. 	$thumb_h=$old_y*($new_h/$old_x);
  15. }
  16. if ($old_x < $old_y) {
  17. 	$thumb_w=$old_x*($new_w/$old_y);
  18. 	$thumb_h=$new_h;
  19. }
  20. if ($old_x == $old_y) {
  21. 	$thumb_w=$new_w;
  22. 	$thumb_h=$new_h;
  23. }
  24. $dst_img=ImageCreateTrueColor($thumb_w,$thumb_h);
  25. 	imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y); 
  26.  
  27. if (preg_match("/png/",$system[1]))
  28. {
  29. 	imagepng($dst_img,$filename); 
  30. } else {
  31. 	imagejpeg($dst_img,$filename); 
  32. }
  33. imagedestroy($dst_img); 
  34. imagedestroy($src_img); 
  35. }
  36.  
  37. $photo1=mysql_real_escape_string($_FILES['photo1']['name']);
  38. $tphoto1=mysql_real_escape_string($_FILES['photo1']['tmp_name']);
  39.  
  40. $dir="../../chillzone/citybuzz/$category/$dirid";
  41. if(!file_exists($dir))
  42. mkdir($dir)or die("Filename all ready exits");
  43. $dir1="$dir"."/"."$photo1" ; //working....
  44. if($photo1!=""){move_uploaded_file($_FILES['photo1']['tmp_name'], $dir1);}
  45.  
  46. createthumb('img5.jpg','thumbs/img5.jpg',100,100);//working....
  47.  
  48. createthumb('$dir1','$dir/thumbs/$photo1',100,100);//Not working(problem here only)

It displays errors:

PHP Syntax (Toggle Plain Text)
  1. Notice: Undefined variable: src_img in C:\wamp\www\vvvv.com\admin\thumb.php on line 12
  2.  
  3. Warning: imagesx(): supplied argument is not a valid Image resource in C:\wamp\www\vvvv.com\admin\thumb.php on line 12
  4.  
  5. Notice: Undefined variable: src_img in C:\wamp\www\aaa.com\admin\thumb.php on line 13
  6.  
  7. Warning: imagesy(): supplied argument is not a valid Image resource in C:\wamp\www\vvvv.com\admin\thumb.php on line 13
  8.  
  9. Notice: Undefined variable: src_img in C:\wamp\www\aaa.com\admin\thumb.php on line 27
  10.  
  11. Warning: imagecopyresampled(): supplied argument is not a valid Image resource in C:\wamp\www\vvvv.com\admin\thumb.php on line 27
  12.  
  13. Notice: Undefined variable: src_img in C:\wamp\www\aaa.com\admin\thumb.php on line 36
  14.  
  15. Warning: imagedestroy(): supplied argument is not a valid Image resource in C:\wamp\www\vvvv.com\admin\thumb.php on line 36
Last edited by sarithak; Sep 22nd, 2009 at 7:58 am.
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sarithak is offline Offline
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Sep 22nd, 2009
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Re: Dynamic path Function calling Error?

Id write this line of code as

php Syntax (Toggle Plain Text)
  1. createthumb($dir1,$dir.'/thumbs/'.$photo1,100,100);

Give that a try.
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phper is offline Offline
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Sep 22nd, 2009
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Re: Dynamic path Function calling Error?

well, if the problem is on line 48, the most sinister actors would be the 2 arguments '$dir1' AND '$dir/thumbs/$photo1'

- try outputting these strings before you call the function, and see what they contain.
e.g. echo "++$dir1++$dir/thumbs/$photo1++";
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wilch is offline Offline
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Sep 22nd, 2009
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Re: Dynamic path Function calling Error?

well, if the problem is on line 48, the most sinister actors would be the 2 arguments '$dir1' AND '$dir/thumbs/$photo1'

- try outputting these strings before you call the function, and see what they contain.
e.g. echo "++$dir1++$dir/thumbs/$photo1++";
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wilch is offline Offline
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Sep 22nd, 2009
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Re: Dynamic path Function calling Error?

Your issue is your using single quotes ' instead of double quotes " as a string with a variable in it.
on line 48 you have:
PHP Syntax (Toggle Plain Text)
  1. createthumb('$dir1','$dir/thumbs/$photo1',100,100);//Not working(problem here only)

Try:
PHP Syntax (Toggle Plain Text)
  1. createthumb("$dir1","$dir/thumbs/$photo1",100,100);//Not working(problem here only)

the problem is, that when you use single quotes '$myvar' will actually be the string $myvar instead of the variable myvar. PHP does not parse inside single quotes, only double quotes.

hope that helps.
Last edited by kylegetson; Sep 22nd, 2009 at 11:52 pm. Reason: typo
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kylegetson is offline Offline
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Oct 19th, 2009
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Re: Dynamic path Function calling Error?
Hi friends...

Thanks 4 ur suggestions...
the total path taking correctly...But instead of creating thumbnail image..it creates blank thumbnail image....

But when the path giving statically it create correct thumbnail image...plz check the above code....


Thanks in advance...

Saritha K
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sarithak is offline Offline
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Oct 19th, 2009
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Re: Dynamic path Function calling Error?
Thanks for sharing your ideas it can help me a lot...
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chyssa is offline Offline
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Oct 20th, 2009
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Re: Dynamic path Function calling Error?
function createthumb() expect the first parameter to be image file name and i guess $filename is the directory path.
I think there is problem with you passing as $dir1, it seems to be made from $dir and some dir structure.Also what comes in $dirid is not been clear
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network18 is offline Offline
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Oct 20th, 2009
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Re: Dynamic path Function calling Error?
Click to Expand / Collapse  Quote originally posted by network18 ...
function createthumb() expect the first parameter to be image file name and i guess $filename is the directory path.
I think there is problem with you passing as $dir1, it seems to be made from $dir and some dir structure.Also what comes in $dirid is not been clear

hey ..

Thanks...

this is my code...


PHP Syntax (Toggle Plain Text)
  1.  
  2. $dir="../../dir/sub/$category/$dirid";
  3. if(!file_exists($dir))
  4. mkdir($dir)or die("Filename all ready exits");
  5. $tdir="../../dir/sub/$category/$dirid/thumbs";
  6. if(!file_exists($tdir))
  7. mkdir($tdir)or die("Filename all ready exits");
  8. //$dir1="$dir"."/"."$photo1" ;
  9. //$dir2="$dir"."/"."$photo2" ;
  10. //$dir3="$dir"."/"."$photo3" ;
  11. //$dir4="$dir"."/"."$photo4" ;
  12.  
  13. $dir1="$dir/$photo1" ;
  14. $dir2="$dir/$photo2" ;
  15. $dir3="$dir/$photo3" ;
  16. $dir4="$dir/$photo4" ;
  17.  
  18. if($photo1!=""){move_uploaded_file($_FILES['photo1']['tmp_name'], $dir1);
  19. createthumb("$dir1",'$dir/thumbs/$photo1',100,100);
  20. }


It creates Blank thumnail image...no errors....
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sarithak is offline Offline
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Oct 20th, 2009
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Re: Dynamic path Function calling Error?
did you noticed that you checking with image type against jpeg/jpg and png, check which format image you passing, when blank thumbnail gets created.
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