   #PHP Manual Image functions imagecreatefromjpeg imagecreatefromstring

   PHP Manual
   Prev  Next
   ______________________________________________________________________

                              imagecreatefrompng

   (PHP 3>= 3.0.13, PHP 4 )
   imagecreatefrompng -- Create a new image from file or URL

Description

   resource imagecreatefrompng ( string filename)

   imagecreatefrompng() returns an image identifier representing the
   image obtained from the given filename.

   imagecreatefrompng() returns an empty string on failure. It also
   outputs an error message, which unfortunately displays as a broken
   link in a browser. To ease debugging the following example will
   produce an error PNG:

   Example 1. Example to handle an error during creation (courtesy vic at
   zymsys dot com)
   <?php
   function LoadPNG($imgname) {
       $im = @imagecreatefrompng($imgname); /* Attempt to open */
       if (!$im) { /* See if it failed */
           $im  = imagecreate(150, 30); /* Create a blank image */
           $bgc = imagecolorallocate($im, 255, 255, 255);
           $tc  = imagecolorallocate($im, 0, 0, 0);
           imagefilledrectangle($im, 0, 0, 150, 30, $bgc);
           /* Output an errmsg */
           imagestring($im, 1, 5, 5, "Error loading $imgname", $tc);
       }
       return $im;
   }
   ?>

     Tip: You can use a URL as a filename with this function if the
     fopen wrappers have been enabled. See fopen() for more details on
     how to specify the filename and Appendix I for a list of supported
     URL protocols.

   Warning

   Windows versions of PHP prior to PHP 4.3.0 do not support accessing
   remote files via this function, even if allow_url_fopen is enabled.
   ______________________________________________________________________

   Prev                Home                  Next
   imagecreatefromjpeg  Up  imagecreatefromstring
