How can PHP developers effectively troubleshoot issues related to adding a contour to text in images?

To troubleshoot issues related to adding a contour to text in images using PHP, developers can start by checking the GD library support for PHP and ensuring it is enabled. They can also verify that the necessary fonts are installed and accessible. Additionally, developers can experiment with different font sizes, colors, and contour settings to achieve the desired effect. 

// Check if GD library is enabled
if (!function_exists('gd_info')) {
    echo 'GD library is not enabled';
    exit;
}

// Check for available fonts
$fonts = gd_info()['GD_FREETYPE'];
if (!$fonts) {
    echo 'No fonts available';
    exit;
}

// Add contour to text in image
$im = imagecreatetruecolor(200, 50);
$white = imagecolorallocate($im, 255, 255, 255);
$black = imagecolorallocate($im, 0, 0, 0);

$text = 'Hello World';
$font = 'arial.ttf'; // Specify the font file

imagettftext($im, 20, 0, 10, 30, $black, $font, $text);
imagettftext($im, 20, 0, 12, 32, $white, $font, $text);

header('Content-type: image/png');
imagepng($im);
imagedestroy($im);

Keywords

GD library imagettftext imagecreatefrompng imagepng troubleshooting

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