<?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!
?>
imagecharup
(PHP 4, PHP 5)
imagecharup — Draw a character vertically
說明
bool imagecharup
( resource
$image
, int $font
, int $x
, int $y
, string $c
, int $color
)
Draws the character c vertically at the specified
coordinate on the given image.
參數
-
image -
由影像建立函式(例如imagecreatetruecolor())回傳的影像資源。
-
font -
取值對於內建的 latin2 編碼字體可以是：1、2、3、4、5(越大數字對應越大的字體)，或是其他由 imageloadfont() 註冊的字體標示符號。
-
x -
x-coordinate of the start.
-
y -
y-coordinate of the start.
-
c -
The character to draw.
-
color -
A color identifier created with imagecolorallocate().
回傳值
如果成功則回傳 TRUE，失敗則回傳 FALSE。
範例
Example #1 imagecharup() example
<?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);
?>
上例的輸出類似於：
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User Contributed Notes 1 note
php at corzoogle dot com ¶
18 years ago
