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imagecreatefromjpeg (PHP 3>= 3.0.16, PHP 4 ) imagecreatefromjpeg -- Create a new image from file or URL Descriptionresource imagecreatefromjpeg ( string filename)
imagecreatefromjpeg() returns an image identifier
representing the image obtained from the given filename.
imagecreatefromjpeg() 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 JPEG:
Example 1.
Example to handle an error during creation (courtesy
vic at zymsys dot com )
<?php function LoadJpeg($imgname) { $im = @imagecreatefromjpeg($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; } ?>
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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 J 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.
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