image resizing does not work for large size images

[mishrarajesh44]

hii all,
I am facing a problem currently..
i have a script for image uploading and resizing..

the image uploading takes place properly for every size images..
but, the resizing works for only small sized iamages..
for eg. resizing takes place for 70 kb sized images but fails for 600kb or more..
my code is below..

 
<?php
$idir = "images/photo/";   // Path To Images Directory
$tdir = "images/photo/thumbs/";   // Path To Thumbnails Directory
$twidth = "125";   // Maximum Width For Thumbnail Images
$theight = "100";   // Maximum Height For Thumbnail Images
 
if (!isset($_GET['subpage'])) {   // Image Upload Form Below   ?>
  <form method="post" action="addphoto.php?subpage=upload" enctype="multipart/form-data">
   File:<br />
  <input type="file" name="imagefile" class="form">
  <br /><br />
  <input name="submit" type="submit" value="Sumbit" class="form">  <input type="reset" value="Clear" class="form">
  </form>
<? } else  if (isset($_GET['subpage']) && $_GET['subpage'] == 'upload') {   // Uploading/Resizing Script
  $url = $_FILES['imagefile']['name'];   // Set $url To Equal The Filename For Later Use
  if ($_FILES['imagefile']['type'] == "image/jpg" || $_FILES['imagefile']['type'] == "image/jpeg" || $_FILES['imagefile']['type'] == "image/pjpeg") {
    $file_ext = strrchr($_FILES['imagefile']['name'], '.');   // Get The File Extention In The Format Of , For Instance, .jpg, .gif or .php
    $copy = copy($_FILES['imagefile']['tmp_name'], "$idir" . $_FILES['imagefile']['name']);   // Move Image From Temporary Location To Permanent Location
    if ($copy) {   // If The Script Was Able To Copy The Image To It's Permanent Location
      print 'Image uploaded successfully.<br />';   // Was Able To Successfully Upload Image
      $simg = imagecreatefromjpeg("$idir" . $url);   // Make A New Temporary Image To Create The Thumbanil From
      $currwidth = imagesx($simg);   // Current Image Width
      $currheight = imagesy($simg);   // Current Image Height
      if ($currheight > $currwidth) {   // If Height Is Greater Than Width
         $zoom = $twidth / $currheight;   // Length Ratio For Width
         $newheight = $theight;   // Height Is Equal To Max Height
         $newwidth = $currwidth * $zoom;   // Creates The New Width
      } else {    // Otherwise, Assume Width Is Greater Than Height (Will Produce Same Result If Width Is Equal To Height)
        $zoom = $twidth / $currwidth;   // Length Ratio For Height
        $newwidth = $twidth;   // Width Is Equal To Max Width
        $newheight = $currheight * $zoom;   // Creates The New Height
      }
      $dimg = imagecreate($newwidth, $newheight);   // Make New Image For Thumbnail
      imagetruecolortopalette($simg, false, 256);   // Create New Color Pallete
      $palsize = ImageColorsTotal($simg);
      for ($i = 0; $i < $palsize; $i++) {   // Counting Colors In The Image
       $colors = ImageColorsForIndex($simg, $i);   // Number Of Colors Used
       ImageColorAllocate($dimg, $colors['red'], $colors['green'], $colors['blue']);   // Tell The Server What Colors This Image Will Use
      }
      imagecopyresized($dimg, $simg, 0, 0, 0, 0, $newwidth, $newheight, $currwidth, $currheight);   // Copy Resized Image To The New Image (So We Can Save It)
      imagejpeg($dimg, "$tdir" . $url);   // Saving The Image
      imagedestroy($simg);   // Destroying The Temporary Image
      imagedestroy($dimg);   // Destroying The Other Temporary Image
      print 'Image thumbnail created successfully.';   // Resize successful
    } else {
      print '<font color="#FF0000">ERROR: Unable to upload image.</font>';   // Error Message If Upload Failed
    }
  } else {
    print '<font color="#FF0000">ERROR: Wrong filetype (has to be a .jpg or .jpeg. Yours is ';   // Error Message If Filetype Is Wrong
    print $file_ext;   // Show The Invalid File's Extention
    print '.</font>';
  }
}
 ?>
 

when resizing doesnot work no message appers on screen..
please find the problem in my script , any suggessions to modify script..

thanks...

[coffear]

try putting the following at the top of your script:-

[PHP]error_reporting(E_ALL);[/PHP]

It is possible that you are running out of memory when trying to resize.

[mishrarajesh44]

try putting the following at the top of your script:-

[PHP]error_reporting(E_ALL);[/PHP]

It is possible that you are running out of memory when trying to resize.

i hav added your statement at the top, but the same thing..no message..
no resizing..only upload takes place..
any other suggesions..
thanks...

[mishrarajesh44]

try putting the following at the top of your script:-

[PHP]error_reporting(E_ALL);[/PHP]

It is possible that you are running out of memory when trying to resize.

hii,
i am adding another information which may help u find my fault..

i hav increased the thumbnail size thinking that resizing extend will reduce..

now i am getting error message..


my code:

<?php
error_reporting(E_ALL);
$idir = "images/photo/";   // Path To Images Directory
$tdir = "images/photo/thumbs/";   // Path To Thumbnails Directory
$twidth = "1100";   // Maximum Width For Thumbnail Images
$theight = "650";   // Maximum Height For Thumbnail Images
 
if (!isset($_GET['subpage'])) {   // Image Upload Form Below   ?>
  <form method="post" action="addphoto.php?subpage=upload" enctype="multipart/form-data">
   File:<br />
  <input type="file" name="imagefile" class="form">
  <br /><br />
  <input name="submit" type="submit" value="Sumbit" class="form">  <input type="reset" value="Clear" class="form">
  </form>
<? } else  if (isset($_GET['subpage']) && $_GET['subpage'] == 'upload') {   // Uploading/Resizing Script
  $url = $_FILES['imagefile']['name'];   // Set $url To Equal The Filename For Later Use
  if ($_FILES['imagefile']['type'] == "image/jpg" || $_FILES['imagefile']['type'] == "image/jpeg" || $_FILES['imagefile']['type'] == "image/pjpeg") {
    $file_ext = strrchr($_FILES['imagefile']['name'], '.');   // Get The File Extention In The Format Of , For Instance, .jpg, .gif or .php
    $copy = copy($_FILES['imagefile']['tmp_name'], "$idir" . $_FILES['imagefile']['name']);   // Move Image From Temporary Location To Permanent Location
    if ($copy) {   // If The Script Was Able To Copy The Image To It's Permanent Location
      print 'Image uploaded successfully.<br />';   // Was Able To Successfully Upload Image
      $simg = imagecreatefromjpeg("$idir" . $url);   // Make A New Temporary Image To Create The Thumbanil From
      $currwidth = imagesx($simg);   // Current Image Width
      $currheight = imagesy($simg);   // Current Image Height
      if ($currheight > $currwidth) {   // If Height Is Greater Than Width
         $zoom = $twidth / $currheight;   // Length Ratio For Width
         $newheight = $theight;   // Height Is Equal To Max Height
         $newwidth = $currwidth * $zoom;   // Creates The New Width
      } else {    // Otherwise, Assume Width Is Greater Than Height (Will Produce Same Result If Width Is Equal To Height)
        $zoom = $twidth / $currwidth;   // Length Ratio For Height
        $newwidth = $twidth;   // Width Is Equal To Max Width
        $newheight = $currheight * $zoom;   // Creates The New Height
      }
      $dimg = imagecreate($newwidth, $newheight);   // Make New Image For Thumbnail
      imagetruecolortopalette($simg, false, 256);   // Create New Color Pallete
      $palsize = ImageColorsTotal($simg);
      for ($i = 0; $i < $palsize; $i++) {   // Counting Colors In The Image
       $colors = ImageColorsForIndex($simg, $i);   // Number Of Colors Used
       ImageColorAllocate($dimg, $colors['red'], $colors['green'], $colors['blue']);   // Tell The Server What Colors This Image Will Use
      }
      imagecopyresized($dimg, $simg, 0, 0, 0, 0, $newwidth, $newheight, $currwidth, $currheight);   // Copy Resized Image To The New Image (So We Can Save It)
      imagejpeg($dimg, "$tdir" . $url);   // Saving The Image
      imagedestroy($simg);   // Destroying The Temporary Image
      imagedestroy($dimg);   // Destroying The Other Temporary Image
      print 'Image thumbnail created successfully.';   // Resize successful
    } else {
      print '<font color="#FF0000">ERROR: Unable to upload image.</font>';   // Error Message If Upload Failed
    }
  } else {
    print '<font color="#FF0000">ERROR: Wrong filetype (has to be a .jpg or .jpeg. Yours is ';   // Error Message If Filetype Is Wrong
    print $file_ext;   // Show The Invalid File's Extention
    print '.</font>';
  }
} ?>
 

error msg:

Image uploaded successfully.
Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 1100 bytes) in /local/home/wwwuser/home.mishra.biz/addressbook/addphoto.php on line 34

the origina image which iam uploading has a size=2048x1536
& i hav written code to resize it to 1100x650..
please giv any suggession...
thanks..

[coffear]

Image uploaded successfully.
Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 1100 bytes) in /local/home/wwwuser/home.mishra.biz/addressbook/addphoto.php on line 34

the origina image which iam uploading has a size=2048x1536
& i hav written code to resize it to 1100x650..
please giv any suggession...
thanks..

PHP has a configuration option that limits the memory a script can use. The error message that you show indicates that the operation requires more memory than you are allowed.

[Markus]

I believe there is a way you can temporarily set the php.ini settings to allow for higher limitations on the memory.

Soemthing like:
[php]
ini_set('memory_limit', '12M');
[/php]
Not sure, but try that (play around with the sizes too) and let me know mishrarajesh!

-markus

[mishrarajesh44]

I believe there is a way you can temporarily set the php.ini settings to allow for higher limitations on the memory.

Soemthing like:
[php]
ini_set('memory_limit', '12M');
[/php]
Not sure, but try that (play around with the sizes too) and let me know mishrarajesh!

-markus

in the phpinfo( ) , i saw the memory_limit = 16M

& post_max size = 8M

so how much memory_limit should i set it to ?
i mean .... ini_set('memory_limit', ' howmuch ' )
plese reply soon
thanks..........

[pikcher]

in the phpinfo( ) , i saw the memory_limit = 16M

& post_max size = 8M

so how much memory_limit should i set it to ?
i mean .... ini_set('memory_limit', ' howmuch ' )
plese reply soon
thanks..........

Set it to
memory_limit = 32M
post_max_size = 32M

and large image size be uploaded.

Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 1100 bytes)

It means what not enouth memory for loading image

You can also use the programm www.imagemagick.org/

[mishrarajesh44]

Set it to
memory_limit = 32M
post_max_size = 32M

and large image size be uploaded.

Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 1100 bytes)

It means what not enouth memory for loading image

You can also use the programm www.imagemagick.org/

how can i change the setting ? any php query..?


plese tell me if any..
thanks for reply..

[coffear]

the code was provided in an earlier post:-

ini_set('memory_limit', '12M');

change the 12M to the value you want. However you may not have permission to increase this.

[mishrarajesh44]

the code was provided in an earlier post:-

ini_set('memory_limit', '12M');

change the 12M to the value you want. However you may not have permission to increase this.

thanks i got it....
it works..