imagecharup
(PHP 4, PHP 5, PHP 7)
imagecharup — 垂直地画一个字符
说明
$image
, int $font
, int $x
, int $y
, string $c
, int $color
) imagecharup() 将字符
c 垂直地画在
image 指定的图像上，位于
x，y（图像左上角为 0, 0），颜色为
color。如果 font
为 1，2，3，4 或 5，则使用内置的字体。
Example #1 imagecharup() 例子
<?php
$im = imagecreate ( 100 , 100 );
$string = 'Note that the first letter is a N' ;
$bg = imagecolorallocate ( $im , 255 , 255 , 255 );
$black = imagecolorallocate ( $im , 0 , 0 , 0 );
// prints a black "Z" on a white background
imagecharup ( $im , 3 , 10 , 10 , $string , $black );
header ( 'Content-type: image/png' );
imagepng ( $im );
?> 参见 imagechar() 和 imageloadfont() 。
用户评论:
[#1] evolution at turkishboyz dot net [2006-02-26 14:33:11]
<?php
$resim = imagecreatetruecolor(400,400);
$renk1 = imagecolorallocate($resim,222,222,222);
$renk2 = imagecolorallocate($resim,111,111,111);
$renk3 = imagecolorallocate($resim,123,123,123);
$yazi = "Merhaba Dunyalilar";
$x =strlen($yazi);
for($a=1;$a<=$x;$a++){
imagecharup($resim,10,20,20*$a,$yazi,$renk2);
$yazi = substr($yazi,1);
}
imagejpeg($resim);
imagedestroy($resim);
?>
[#2] jansafar at volny dot cz [2005-12-02 10:18:36]
I'm using imagestringup() function to write text upwards.
[#3] php at corzoogle dot com [2005-06-16 16:28:45]
<?php
// incredibly, no one has added this.
// write a string of text vertically on an image..
// ;o)
$string = '(c) corz.org';
$font_size = 2;
$img = imagecreate(20,90);
$bg = imagecolorallocate($img,225,225,225);
$black = imagecolorallocate($img,0,0,0);
$len = strlen($string);
for ($i=1; $i<=$len; $i++) {
imagecharup($img, $font_size, 5, imagesy($img)-($i*imagefontwidth($font_size)), $string, $black);
$string = substr($string,1);
}
header('Content-type: image/png');
imagepng($img);
imagedestroy($img); // dudes! don't forget this!
?>