📄 1-5.php
字号:
<?php
if (isset($_GET['message'])) {
// load font and image,calculate width of text
$font = 'times';
$size = 12;
$im = ImageCreateFromPNG('button.png');
$tsize = imagettfbbox($size, 0, $font, $_GET['message']);
// center
$dx = abs($tsize[2]-$tsize[0]);
$dy = abs($tsize[5]-$tsize[3]);
$x = (imagesx($im)-$dx)/2;
$y = (imagesy($im)-$dy)/2 + $dy;
// draw text
$black = ImageColorAllocate($im, 0, 0, 0);
ImageTTFText($im, $size, 0, $x, $y, $black, $font, $_GET['message']);
// return image
header('Content-type: image/png');
ImagePNG($im);
exit;
}
?>
<html>
<head><title>Button Form</title></head>
<body>
<form action="<?= $PHP_SELF ?>" method="GET">
Enter message to appear on button:
<input type="text" name="message" /><br />
<input type="submit" value="Create Button" /></form>
</body>
</html>
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