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POWhat’s wrong with this PNG Transparent image generator? The background is Black
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  1. POWhat’s wrong with this PNG Transparent image generator? The background is Black
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    copied!<p>First: I want to create a PNG image and draw a shape inside it.</p> <p>Second: Overlap the first PNG on another image (for example a jpg image) The problem is: When I create the first PNG with a shape inside (the background is not transparent and is dark) so this make a black overlap on second image.</p> <p>How can I fix it?</p> <p>I don’t work so much with images function so I got trouble.</p> <p><strong>Notes:</strong> I need to create the first transparent PNG and then overlap it on second image. I don’t want to create shape directly on second image.</p> <p><em><strong>And The Code:</em></strong></p> <pre><code>&lt;?php define('EXAMPLE_TMP_SERVERPATH', ''); define('EXAMPLE_TMP_URLRELPATH', ''); $tempDir = EXAMPLE_TMP_SERVERPATH; $fileName = 'test3img.png'; $imgW = 125; $imgH = 125; # First $base_image = imagecreatetruecolor($imgW, $imgH); $black = imagecolorallocate($base_image, 0, 0, 0); imagecolortransparent($base_image, $black); $col[0] = imagecolortransparent($base_image, $black); imagealphablending($base_image, true); imagesavealpha($base_image, true); imagefill($base_image, 0, 0, $col[0]); imagefilledrectangle($base_image, 4, 4, 50, 25, 255); imagepng($base_image, $tempDir.$fileName); # First2 $target_image = imagecreatetruecolor($imgW*5, $imgH*5); $black2 = imagecolorallocatealpha($base_image, 0, 0, 0, 127); imagecolortransparent($target_image, $black2); imagecopyresized($target_image, $base_image, 0, 0, 0, 0,$imgW, $imgH, $imgW, $imgH); imagedestroy($base_image); imagepng($target_image, $tempDir.$fileName); imagedestroy($target_image); # First2 # Second $dest = imagecreatefromjpeg('../avatar.jpg'); $src = imagecreatefrompng(EXAMPLE_TMP_URLRELPATH.$fileName); imagealphablending($dest, true); imagesavealpha($dest, true); imagealphablending($src, true); imagecopyresampled( $dest, $src, 0,0, 0,0, 200, 200, 125, 125 ); imagepng($dest, EXAMPLE_TMP_URLRELPATH.'_m.jpeg'); imagedestroy($dest); imagedestroy($src); ?&gt; </code></pre>
 

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