imagecreatefrompng
(PHP 3>= 3.0.13, PHP 4 , PHP 5)
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:
Exemplu 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; } ?>
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Indicaþie: Cu această funcție se poate folosi
URL-ul ca nume de fișier, dacă a fost activată opțiunea "fopen wrappers".
Vezi fopen() pentru mai multe detalii.
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Windows
versions of PHP prior to PHP 4.3 do not
support accessing remote files via this function, even if
allow_url_fopen is enabled.
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