PHP 7.1.19 Released

imagecharup

(PHP 4, PHP 5, PHP 7)

imagecharup垂直地画一个字符

说明

bool imagecharup ( resource $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 xy(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';

$bg imagecolorallocate($im255255255);
$black imagecolorallocate($im000);

// prints a black "Z" on a white background
imagecharup($im31010$string$black);

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

?>

参见 imagechar()imageloadfont()

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User Contributed Notes 1 note

up
-5
php at corzoogle dot com
13 years ago
<?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!
?>
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